My big, main complaint is there's no save function; when I died, the game closed and I had to restart from the beginning. This is very frustrating.
I noticed that you are gonna implement some new races and here's my suggestion: a tiefling-esqe race. Really, I just want muscular demon girls. Glowing eyes, glowing hair, multiple sets of horns, red and/or purple skin pigmentation, the works! I could've added more descriptors, tell me if you want more of them. You want descriptors? I've got descriptors.
Something else I think that could good is seeing our companions grow too, and at their own rate. Perhaps at each stage of growth, their distinct feature would become more prominent and numerous, too?
Have you ever watched and/or played Spore? If you haven't, there were these tings called epics, massive beasts to be avoided lest you catch an early appointment with death. They were meant to represent that, however strong you became, there were simply some things that you always ought to avoid. Perhaps you could implement a similar system to showcase that our character is not the first to pursue physical improvement. That there are some who've progressed far enough along this same path that they've become behemoths and, perhaps, a glimpse of the player may become.
Something that absolutely need to happen though is a greater enemy variety; the world's dangers cannot just be slimes, wolves, and bats! It'd be very limiting if it were.
This is probably just me, but I'll put it here anyway: everything is too square. Bodies of water should be more ovular.
I may post again if more ideas come to me. Have these ones been absorbed?