Some blacklining (actually with those colours, darklining would be better) would really make this pop. The addition of a dark 'line' between different areas of the mini to differentiate them, usually done in black or brown, though for this I would suggest darker versions of the base colours. The strongest place that I think needs this is the devision from Bustier and Skirt. Also the sleves and chest from the skin (perhaps a brown there).