I got the cubicles at Ikea and they are 15" deep. It is called Expidit. I have a very dark brown one too in my home office that is a little bigger at 5x5 cubicles.
http://www.ikea.com/us/en/catalog/products/40047675
The quilt on the wall is my very first quilt made from the scraps that my grandmother gave me. I sewed clothes for my daughters and home decorating things before that and one year I went to the county fair and saw the quilts and thought, "I could do that." so I did. I won first place the next year for Quilter's First Quilt. It is machine sewn and hand quilted. I'll take a picture of it to post.