Needs more effort.
It;s been a while since I reviewed anything so I may as well start here: You should get a better art program like I have mentioned and maybe a tablet. The tablet I use only costs 70 dollars but I would recommend getting this free software called Gimp because it suits your style. http://www.gimp.org/
I would spend more time and effort onto this because The "NG" letters or abbreviations look very uneven and sloppy. maybe add more color even though the NG theme is orange and black. Be creative! Just keep practicing too! Maybe try starting on paper and making sketches like I did, then after I got good with sketching and traditional, I got myself a tablet. It came with a very good software too. Just try and make pencil drawings or mainly traditional and maybe scan them. if you don;t have a scanner, then take a VERY GOOD PICTURE or else...
Like I said before, be creative! I know MS Paint is hard to be creative with but there is a whole art thread that makes art out of MS Paint and they look amazing! Just practice and keep trying.