Here are some montains I designed. They are kind of cartoony looking while still working with the style of TM2020 I believe.
Include 7 montains (3 deco only, 1 tunnel, 1 ramp, 1 checkpoint and 1 finish).
4 themes :
Also include everything scaled x1.5.
You can see an example of this set being used in my map PicPic available below.