Hello Sweetshelties
your blocks are absolutely wonderful.
if most of your blocks are in the light bright pink range and only one or two are in the earthtones - then you'll have problems fitting them together - if you have a good mix of everything - then you won't have problems with the mix in the quilt top.
Think of nature - look at a colorful flower garden / a natural border / a wild field or patch of woods - you'll have lots of natural colors mixed in with bright blue / pink / etc. etc. flowers, vibrant greens, every shade of yellow and whatnot. I'm adding some of my photos below to show how well very different colors are matched in nature - as I prefer details my pictures are generally close-ups - so that we don't have the full countryside look - but that should not be a problem - walk down the street - look out the windows - take your inspiration from what you see and like in our beautiful world - and enjoy yourself with it.
i find that if something feels out of place - the trick generally is to add a few more in a similar line - they will then help to fit in.
a few smaller bits of something "foreign" generally adds sparkle and interest - a big blob will feel odd - so try to make gradients or real mixes.
lay them out - take a picture - do something different take another picture - hang lots of different pictures on your kitchen cubboard doors and live with them for a while - after a few days discard the no-goes - leave the rest - eventually a favourite or another option will emerge. sometime you will want something to tie them in. I'm not normally a fan of sashing - a multi-coloured background or sashing - possibly with oneor more of the fabulous kaffe fabrics might just be the ticket.