As i promised , here is the image with some pointers. Im gonna review them and by the end of the post , i hope you will have a better understanding of your image and what you should notice.
1) The facial features of the orc are not even. One eyebrow is smaller than the other , his eyes are not aligned and his nostrils seems to be of different shape and angle. Furthermore , one eyebrow ends in the midle of his nose bridge wich is another anatomical mistake. Aside from the obvious suggestion that is to study facial structure , i also suggest that you flip your image horizontally every now and again. When you look at the image for a long time ( i.e. when ur drawing) your brain gets used to the image and its harder to spot mistakes. If you flip the image , you will notice things you missed way easier. Just a test , everytime you draw some part of the image . I bet you will quickly make a habbit out of it.
2) The neck has anatomical issues as the muscles are not portrayed correctly. Check this and this
3) The teeth seem to overlap the lip which is wrong since they do not grow on the lip but instead , the lip covers them. It should be obvious that they are behind it. Make sure not to show the bases where they connect with the gums. Also the lip's hue is contrasting with the orc's skin tone. It would seem as if he is wearing a lipstic. I wouldnt mind if it was some weird monster etc but since its a humanoid orc that doesnt seem to have any tattoo or warpaint , he should be coloured in a concistent way to make his skin believable. The lip should propably have a darker green tone.
4) Be careful when you use textures from photos or brushes. First of all , the texture is flat and ruins the spherical shape of the shoulder pad. It makes the image feel 2d. To avoid that i suggest you use the lasso tool and play around with Wrap , Distort and other handy modes of lasso , in order to make the texture wrap around the surface. Furthermore , make sure that if you decide to use such texture , you must create an even image where all surfaces are properly textured. For example , i see texture on the shoulder pad but not on the skin. Anyway , personally i dont use premade textures anymore , in my opinion , textures fit best on paintingS but not on comic work were the linework is visible like mine and your's. In some linework style it may look good but most often i find it that its a poor shortcut for the artist to give the impression of material. The best way is to draw the texture on your own , or even better use brushes that help you do that . Its surprising what a bounch of simple brushes can do if used properly.
5) The hand's anatomy is wrong, study hands more , dont worry about it , its possibly the hardest part of the body to understand , along with moving feet.
6) Again the hands , they look too stiff. Hands are very flexible and they wrap around the things we grab.
7 and 8) This is about the rendering. Rendering is the most important phase , as it creates the illusion of 3D and makes the objects assume form. In your image there is no certain light source. We see the arm of the orc reflecting lights from somewhere up , left and front. We see the baby receive light in the tummy which is quite weird considering it is in the arms of its dad. We see that one hand receives light from the left while the other does not and nor does the baby's back. And the head's rendering is missplaced too. Theres too much shade on places there shouldnt and no shade on places where it certainly should. For example his scalp is very darkly shaded while his chin is bright as day.
To do a proper rendering you must follow a process. Right now i feel like you rendered with the thought of trying to show the shape of the body , without considering the actual lightsource. When you render 1) decide your light source(s). Where does the light come from , where does it hit. Once you know that , you can calculate how the shadows are cast. 2) Understand the shape of the object you are rendering. In flat colours , everything looks like a sticker. Its not. When you render something you must understand the surfaces so you can cast shade and light properly. This comes with study and experience as well as observing from real life.
As for the rendering technique , there are tons out there. If you want to have soft shading and not cell-shading , i think it would be better if you used a soft round brush instead of the blur tool. Additionally , a commonly acceptable way is to use the multiply mode. To do that , pick the colour of the area you are rendering. Then create another layer on top of it and set mode to multiply. By adjusting opacity you can create a nice hue of shade. If there are multicoloured areas , a good idea is to pick a grey tone for your multiply. This way all colours will be shaded in their own hue and not get mixed.
In time and practice you will find out what rendering technique works the best for you. I needed a couple of years to decide mine so dont worry if you are going back and forth. And also , check Scott Robertson's dvds on How to Render Matte surfaces. They are very good. here's his utube channel
The numberless circle) The earing are define physics as they seem to float. One is pinched very close to your linework for the ear and it seems as if the orc is made of papper. also the tooth piercing is mistakenly proportioned. Its impossible for it to obscure the face so much, it makes it look as if the face is flat. Also , it messes with the face's composition as it is too big and draws focus from the point of interest which is the face.
In general , i like your work , its a very interesting idea and i dont get to see the soft spot of orcs often. I see you have imagination and you are not limited in creativity. I am sure that in time you will become agreat artist. Work hard and try to amass as much knowledge as you can. Your artwork has potential and if you really want it , you can make big leaps ahead. I hope my pointers are helpful , its too big to review it so , if something is unclear or you have further questions , im always happy to help!