Dance of a Cedar Tree

I am calling this one finished by leaving it unfinished. The center of attention is the tree with the light atmospheric dancing of the roots. I have given it some ground, but not much allowing the roots to "dance" on the surface.

Here is my latest nature study. This is from a photo my sister, Mary, took while on vacation to Oregan this summer.

My goal in this drawing is to work on dimensionality. I really want the roots to look rounded and create strong depth.

One thing I haven't figured out yet is how to do the ground and getting those roots to really feel solid in place.