Thanks for your opinion, everyone. I think I could have made a better selection on sashing, but since I have already sewn what is there together, I think I'm going to make it longer with something ( I haven't made up my mind yet, I have several ideas), and finish with the dot border.

After you sash/border it with the brown fabric, piano keys would look fantastic all the way around it...using all the colors! then bind it with the brown. Please show us when you've finished it! :)

I really like the colors you've chosen, and the sashing & corners' fabrics are great!