Wow, that's something else!

What a beautiful project; I love the repurposed shapes and the natural flow you managed to achieve. You made it look purposebuilt.
The only thing not quite meshing is the head. It lacks the flowing lines of the rest of the droid, but then again, it does add to the overall look.
Also, for a moment I thought this already was the final paintjob; the plastic and putty colours work well together in a muted, 'realistic' way. Will you be painting it something garish, or will you keep it muted?