I think it has potential though i feel like the trees could stand out a bit more. As the one in the center sorta blends too much with the background imo. Idk if thats what you're going for but i think its worth considering. Also. For the low poly look i would suggest using cones instead of triangles. You can get a really good looking tree just by stacking 3 cones ontop of each other and having a transparent leaf texture
Wishing you luck on your game!