I have finished the 1st block, and used two different backgrounds. I am like carrie, I have not decided on the corner fabrics yet either. I think I want to get several done before I make that decision, so I can preview what they look like with different fabrics.
QNS - what a super horse quilt for that little girl. And what a surprise she is still into horses in her teen years! Wow, so many girls change directions as they mature!