3D sketching

Made some 3D sketches based on a couple of my creature concepts. First off, that recent Helicoprion.

But that proved to be too simple so I also tackled the Wendigo I'd drawn a while back..

..which is a retouched version of this drawing (from a previous sketchbook):

I'd like to add more details, but my computer cannot handle it. Perhaps I'll get an updated graphics card and really push these things to the limit.