Certainly is looking really awesome; the tree effects close up are just amazing!
But I have one nit-pick about the trees. From flying over England on my holiday, I noticed that the tree trunks just can't be seen (apart from on the odd trees you see in gardens) and the trees look really dense. From the screens posted so far, the trees better match those that I've seen in warmer climates. It may sound really anal of me, but I think it makes a lot of difference to the overall effect. I also noticed how all the fields seem to be really boxed in, and I was amazed at how I could still see traffic from thosands of feet up...food for thought for the sim