Hi! I like your use of color and brush strokes
So, were you going for realistic? If so:
- His upper body is way too long stretched.
- What are those things on his belly side, they look like extra arms?
- The arm anatomy is incorrect, especially around the elbow area.
- The lighting is incorrect and seems to come from different directions (the white area on the neck?)
I'd say: study anatomy and values before rendering that much Good luck!