I am REALLY bad on doing those clusters with all flowers the girls do... but I have few pages where you can see I tried... lol
Lots of papers as banner:
Flowers/papers/foliages as "frame"
Foliages behind the picture and few things to, again, frame the picture.
What I think it is hard, for me, to cluster is to repeat elements and I don't usually add flowers to my pages...
Anyway, hope that helps. ♥