Trees and forests are so relaxing to draw <3
And I was going to say the same thing about the hands - been avoiding them for years, but now that I'm learning how to draw them, they can really make a character's pose or expression stronger and more convincing.
Personally, my favorite things to draw would be big cats (I taught myself to draw tigers and lions before I started on humans), necks / shoulders / collarbones, and gorgeous butts. It can't be helped.