There are economical blog posts and then there are posts that just don't offer any information whatsoever. I found these pics over at jeffbridges.com. The only sentence in the post is this one: "These women make horse sculptures from driftwood." Yep. I guess that about covers it. See the whole gallery here. Update: Thanks to Brian for doing a little Googling for me! Heather Jansch is the artist in question. All her works can be found here.