Oil painting update

I guess I'm improving - I was happy with this landscape a couple of months ago, then when I looked at it last week I thought it looked very flat. The original was normal oil paint, but I've added a layer in water-mixable oil paints (mainly Cobra with a few Artisan).








But when I look at it with the frame I want to use, the clouds look fine but the paddock and sheep look too dull so it needs a bit more work in the middle and foreground.