I wouldn't try to match up all these stripes, and i am not just jumping on the bandwagon, I love your block the way it is.
I also love your fabrics. These are my kind of prints!
If you really want to know how to line some things up, stick a pin straight down thru your fabric and then guide the point thru the next piece making the pinpoint come out at the same place. Take another pin and pin, then pull out first pin.
I would be crazy if I did to much of that matchy matchy with these.
Oh and plaids...unless you are into self torture, forget matching those!
But with a sashing in between they can add so much to the look of things.
beautiful block! I love pink...and I love blue and pink together :D