Help with aquascape in small tank

[andsoitgoes]

Hmm - thanks, that actually does help a bit. I think my only worry is the encrusting corals (even the pipe organs are pretty stuck in) are pretty snug on the rock - but that big beauty in the left hand corner would be a nice candidate to share the colour around the tank...

I think my other problem is trying to know what I actually want - What kind of smaller pieces am I looking for, and what would look best. Very frustrating and I worry about hurting the livestock in there when making these moves. I think I may have lost a sexy shrimp already