HoMM VII Haven Units – Haven faction units from the seventh installment of Heroes of Might and Magic.

The manticores in the screenshot look a bit too "blurred" and "fat," as if their body parts have been enlarged relative to their bones.
Regarding the animations, I already mentioned that FrozenSol fixed them. If you plan to further refine the manticores and release them, it might be worth collaborating with FrozenSol. If you're just posting screenshots to show off, then it probably doesn't make much sense.