Ah okay I see what you're saying, i was sort of relying on the blood splatter and animations to handle that kind of feedback, but I think you're right that they're not really responsive enough. If i continue work on it, I think I'll defiantly spend some time making some visuals for damage, both for the player and enemies. I also think a visual for picking up health/ammo would be nice, I'm thinking of the red flash you get when you pick up health in DOOM.
And thanks! I like yours as well, this was one of the first commissions I ever got, the artist is called @_Konkoo on twitter and has absolutely improved as an artist since I had it done.