Coloring Others Work

I found this lovely line work on Weasyl by https://www.weasyl.com/~venomoussoliloquy and was given permission to do my own coloring on it. This is how it has gone so far. I like it but can not decide what color to do the curtains. It is 8 1/2 x 9 1/2, Acrylic, copic marker (for the design on the couch)  on Canson paper. Any suggestions on the curtain colors would be appreciated.