Centaurs are a favorite of mine to draw, possibly because I never run out of self-criticisms. There's a huge amount of balancing issues for it to come out believable...
That said, this looks like you're shooting pretty well on it, given my assumptions about your style. Still, you might try to roung out the arse a bit? I like the belly button (Think about that for a moment. Where would a centaur fetus be hooked up? One of a million questions given by anyone who takes this sort of thing too seriously)
drawn in 26 min
drawn in 21 min
That said, this looks like you're shooting pretty well on it, given my assumptions about your style. Still, you might try to roung out the arse a bit? I like the belly button (Think about that for a moment. Where would a centaur fetus be hooked up? One of a million questions given by anyone who takes this sort of thing too seriously)
Are you willing to try this collab?