Fabric Pulled for Wonky Stars Quilt

My next quilt is completely inspired by Fresh Lemon's Twilight Lullaby Quilt.  Only my color scheme is green orange blues and grays. 

I made a couple of test blocks:

I absolutely love the little cars and firetrucks!

It always takes me forever to combine fabrics for a quilt.  I doubt myself over and over and have a hard time deciding if it matches.  Some of the above fabrics probably won't make it into the quilt.  And some I will pull out of these stacks only to put them back in later after I convince myself that it will look fine in the end.  Anyone else have this problem?