I did these about a week ago and wasn't very happy with them so took a few quick pictures and tried something else. They don't seem to look so bad in this picture (the only one which turned out!) so I decided to post it.
The background polish I used was OPI I don't give a Rotterdam. This is a really pretty colour, but I think it would benefit being layered over something else (maybe a medium blue or white). It took 3 coats for this opacity, and there was still some slightly bald patches.
I painted the flowers using a flat eyeliner type brush first in OPI Eurso Euro
(how bright and awesome is that blue?!).
I then coloured this in with a finer brush using OPI thanks a windmillion. In the centre of the flowers I used OPI fly, and a little bit more thanks a windmillion.
And that's it for these nails!