Wow what a bright and beautiful collection.
Some thoughts:
I had a varied collection once and decided to sell most of my lighter colored bags off (turq 05, bubblegum, lilac 04, ect) in late winter. Come Summer, I wanted an light, bright bag and had nothing summery left. So I would advise you to wait til summer til you decide to make a huge change.
Selling the 05 bubblegum is probably a good idea as you don't like like the distressing. Too close to the petal anyway. If you do decide to sell the petal as well, then at least you still have sky and jaune for summer. And I *really* love and miss the color of that twiggy.