I think I need to bring one hydrangea to life and then build around it... but then I risk trapping myself into more realism than time and other restraints permit.
There are fundamental problems of scale that I have yet to resolve. I want to create a walk way to give the sense of freedom to explore further.
The clouds actually work reasonably well, and have more colour than appears here. I am using exactly the same paints in the flowers to give warmth and unity. The brief is for a field of blue and violet flowers with hydrangeas, butterflies and a blue and violet sunset. I don't want to go too dark or too dramatic/strong until the client has seen the lighter version. These colourings match better the photographs she has sent as "starters".
It's a big ask... and I have to review my approach from time to time!
Later: I have added in a small hill, pushing back part of the composition and allowing the smaller flowers to be forward over a background, and been a little drastic with the clouds near the skyline. I will probably break up the solid clump of flowers near the middle on the lower edge.
This is all just blocked in for now... it's lunchtime!