What would be perfect is the form and shape of the black tee but in the colours of the flowery top. The skirt needs a vibrant colour to liven it up. Black doesn't really complement it all that well, especially now entering the Spring season. But I agree with the general consensus that a frilly skirt and a frilly top is way too much frills.
What would also look great is an embroderie anglaise or cream coloured fine material in a close fitting corset/bodice type top. The detail on the top could be in the fabric, detailed stitching, rather than a riot of pattern and colour.
Clare