Thanks for posting!! I like the idea of painting the shelves white, but if they are the only area of blue in your room and that color is important to your scheme, you might not want to lose that.
Have you seen the video I made with Chriselle Lim where we decorated her shelves? It’s full of tips and I think could be really helpful for you in deciding how you want to lay everything out!
What’s good is that you already have awesome things to fill up your shelves, so all that’s left is a little rearranging! Have fun and play around with it. It’s nothing permanent, so there is lots of room to experiment.