The pink is a bit too much for me. I would try auditioning more colors (like you did with the pink) until you hit on what you like. Just pull some colors out of those blocks like the green, or black or even a more subtle pink. Aren't design walls great? You can figure out what you like before sewing it all together & then later having to rip out because it's not what you really like. Stepping away to get a better look & even re-visiting it a day or two later will help.