Using one of the references from the previous sketches, I tried with some color, without fussing too much with details.  For the first one: cobalt, alizarin crimson, raw sienna; Second one: ultramarine, burnt sienna, yellow ochre, permanent rose, lemon yellow (just a hint, could as well be excessive). I painted the sky on wet paper, let it try, then used a smaller brush (Princeton Neptune n.10) to add the background hills with a pale mix or cobalt+crimson/ultramarine+burnt sienna. Wet-on-wet coming down the land and creating lines for the fields, progressively making the paint stronger and adding more yellow. I let it dry again and added the final field stripes and bushes.