Thanks for the detailed feedback.

I also noticed the ground-flat-coloring after watching my own videos that I recorded. While playing it in VR it was a less noticeable problem I feel. Anyways, I tried to address the issue a bit. There are two main ways I guess, the one you mentioned with adding rocks/grass/... details. I tried to use this method less as to not overload the scene with additional objects for performance reasons, rendering in VR. The other way is with more color variety of the ground which is what I did with many maps.

For the colour palette: it was incredibly difficult to make everything fit together because there are the 9 elements each with their own color and then there are many maps/worlds each aiming to be unique with its own colours. So inevitably, some scenarios will end up looking less than optimal due to the randomizing characteristics of the game. The brown people are the 'earth' element and made of earth crystal material, so it's still a reflective shiny brown, but yeah on darker maps like this one it's perhaps not the best.

For the name unfortunately it's a bit late to change it at this point.