I'm really not sure.... I was trying to get to the grass part of this, like in your screenshots, but everything I do doesn't seem to work ... The concept is neat.... It's been a long time since I played a game like this, but I'm not sure how to progress further in the game

Haven't played many "god games" before, so idk how original this concept is, but I like it. would love more options for the brush, it's been slightly difficult to control the game how I wanted it to at a few moments. Aside from that, maybe some optional goals to strive towards (like, sandboxiness of it is cool, but might get a bit more of a push with stuff to do :p)