This looks like a fun deck ! Did you already get to try it against your playgroup ?
From what I can tell by looking at the list, it feels like the deck might run smoother with more lifegain sources and/or more ramp. Most of the lifegain comes from food tokens, and those cost mana, so you might want more ramp (to be able to use the food tokens AND develop your board) or more free lifegain sources.
Also some cards seem a little out of place at first glance. I don't see how Viscera Seer or Lord of Extinction for example fit into the deck's strategy, both can be good card but I don't how they synergize with what the rest of the deck is doing.