This is three (!) coats of In My Back Pocket by OPI for the base colour. This polish makes me so conflicted. I love the colour, but I can never get it perfectly opaque and I refuse to use more that 3 coats. The blue is a cheap (seriously, they are like £1.99) Beauty UK one that I bought once because it was next to the checkout. The flowers were created by simply dotting 5 blue petals with a dotting tool, although you could use a bobby pin, and one dot of white in the centre.
My laptop's doing this wonderful and not at all irritating thing again where it doesn't like to keep photos rotated...
Anyway, hopefully I will have time to do something a little less basic soon. My nail time has been severely lacking :(