Molly,
Congratulations! I remember when I sewed my first block, and I had been a seamstress for years tailoring suits and coats. I wouldn't go back to sewing clothing for anything. That is what thrift stores are for...
My first blocks were blue... My son has the quilt. His wife refuses to let him use it. It is always folded at the bottom of the bed.
Show us, if you can. It will be interesting for us that has sewn quilts for 20+ years. Also, as others have said, put the backing fabric on the back before you quilt and then quilt through all three layers.
Anita