The texture looks a lot like some of the things I have done. I did one paintingwith a paper mache' ground. Like your work it was quite a successful effect. I am curious as to how "finished" this piece will look. It could eaqsily fly as is, but it is your work so you know best.
Have thought of papiermache mâché as base...used it a while back with body casts...not sure when it will be done....they seem to be evolving forever, think the arm area might need more.....but what do I know!