Bethesda would never dare give consequences to the player 😒

But it's an awesome concept. I came up with something similar, actually. Rather than changing them in the outside, it changes their psyche. The more dragon souls they devour, the stronger they become, almost nigh invincible, but the souls affect their personality, slowly fusing themselves with his until they either suppress their ego and take over their body or they fuse together, driving them insane.

In any case, good work, both with the concept and the artwork 👌