Awesome
will the grass move in the prop-wash?
Those trees look awesome. For the one with the 'rounder' foliage, I may suggest making the trunk smaller. It's completely anal of me to say this and I only say it because it can make a difference, but when flying over areas of wood/forest in the UK, the trunks of the trees can barely be seen and then same is true when driving. i could probably get some pictures to show this if it's of interest...? Otherwise the best looking trees I've seen in a sim. I don't even think some modern dar FPS games have trees that look that good.
Will hedges be modelled? These almost look like dense borders when flying; a bit like flying over a solid cuboid that is long and thin
The pilot is not wearing his helmet in the second pic; please don't tell me he puts it on...

that would just be so (excuse my childish excitement) cool.