Its been a while since I had a window to play in but how about a big vase of willow/corkscrew hazel with some artificial flowers in your colours wired/glued on? We did it once with artificial gerberra and it looked like a gerberra tree with lovly twisty branches? Or you could just hang some nice fabric in a big drift from the ceiling and pool it at the bottom - thats always a good way to "draw the eye" to what you have on the bottom - maybe pin on a few butterflies or something? Another thing we used to do was upturn the big square black buckets under some fabric to use a platform for a nice tall arrangement on top - dont know if thats any help - others might have some better ideas!

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