quick works of planes, colours and shapes

i'm attending an 8-weeks-summer course at a museum, which has a wonderful Andaluz garden (as a garden in Andalucía - Spain). the teacher makes us see the shapes, the contrasts, the colours, without making details which is too difficult for me, because I always tend to go till the most tiny detail if I can. working with watercolurs in the last years has helped me in that, though in this case, these two works i did this mornig, i used oil pastels to make some shapes then blurred it with turpentine and a strong brush and kept on adding more oil pastel, tried to blend it in some places and not in others.