Personal - Colour Study

Doing a colour study, what makes which colour and why?

Since this is an outside shot (and a really pretty one!) I decided to make use of it to study natural colours outdoors.

Pros:
+ Form
+ Colour
+ Composition

Cons:
- Contrast
- Values

I put the Values under cons but I'm going into the right direction, so it's more or less considered neutral.

P.s. This is going to be an A3 size digital painting for a special someone. I will finish this up and hope to make someone happy.