Are you kidding???
What? You seriously want me to critique your work?
I think you're headed in the right direction.
You definitely have skills and talent.
I would just recommend that you edit and clean your scans in Photoshop. I can see the shadows, and it doesn't make for a great presentation.
You're actual artwork is good. It reminds me of what "Fine Artists" like to do. Tho' this is Surrealism. (which I love)
Study up on expressionism & impressionism, because it seems that you like the textured look. It's almost there. And, work on line quality. It almost has what we would call "confidence" but not quite jacked in totally.
I know animals are easier to draw than humans.
Like I tell everyone go to as many life drawing classes (especially gestures) as you can. Look for the open drawing classes if u can find them, or ask teachers if u can sit in on them.