Welcome to HBGames, a leading amateur game development forum and Discord server. All are welcome, and amongst our ranks you will find experts in their field from all aspects of video game design and development.
Ive been working on a few mech battlers for me game over the years revising and redoing it more often then i can count to me i see a few problems. But i cant pinpoint what yet hopefully you all will see what i must be doing wrong.
I like the lineart, the posture and pose look fine, however, you need to add more contrast, or from what I can see you do anyway, since it looks like the colours blend together.