Nature and other things...

 One of the great things about the above three trees is that, though they may not be very realistic, they span three different art mediums (art mediums are like the materials that you make something out of).  In this case, I used charcoal for the first picture on the left, pastels for the middle picture, and pencil for the third picture (on the right).  It's really fun to try different mediums because each produces its own special effect.

Oil Pastels

"Other stuff"

A landscape done with pen and ink. 

This is the "other things" from the title...