I'm unsure of which of the solids to add to this; especially the blues.
The fabric with all the circles is the backing and I am using...
Moda~ Tranquility Charm Sqs.
SOLIDS ARE...
eggshell tan
lt. celery green
aqua sorta blue
rust med.
lt. tan
med. tan
blue

I would say any of them except the two lightest colors; just my opinion. I like all your blues. I like all the fabrics.

I like the eggshell color (or it may be light gray the one right behind the white in your picture), the rust and the lighter blue. The darker blue seems to fight with some of the blues in your Moda Squares.

Will the patterned blues need to go next to the solid blues? If you keep them apart, they should be OK, though I'm more doubtful about the darker blue. What's the intended quilt pattern?

The lightest fabric (white?) looks too light to me.

Could you maybe photograph the set without the darker blue and the white, say?

I would leave out the top two solids and the bottom solid and use the rest. Very nice combination you have going there. Love the back you are going to use too. I know others will give you some good ideas to think about also.

I likw both the blues and the peach. Do you have a green and maybe very pale yellow? What about a chocolate brown instead of the grey?

the eggshell one is actually a light celery green.

patterns will be next to them.
pattern will be stacked coins / but I'm going to try and redesign it.

I agree and looking forward to seeing your new quilt.

SOLIDS ARE...
eggshell tan
lt. celery green
aqua sorta blue
rust med.
lt. tan
med. tan
blue