Looks like you chose a challenge for yourself. I hope you keep posting as you proceed so we can see the progress.

It looks very promising. I like the fabrics you have used. I definitely like to see stripes in a quilt with other prints, and the colors are wonderful together. I might turn the stripes so that they run the other direction on the sides. Otherwise the linear effect that you get from the stripes keep our eyes going up and down mainly and may not provide enough side to side balance in the design. But that's a hunch only. If it was my own project, I'd want to arrange them differently, take another picture and try to decide after I've seen it both ways.