Evening On The Lake WIP

I'm currently working on my third large animal painting. Below you can see the rough sketch and three shots taken with my phone in the studio over 3 days.

The first painting day I finished a very basic underpainting, sepia in the foreground and cobalt blue in the background hills. For days two and three I have been glazing the background very carefully and started to flesh out the local colours in the foreground boats and figures. All the time I'm battling with warm light and cool shadows which is hard enough when painting from life, never mind making it up!!