HI, I am also trying to find out what the name of the plant(shrubs) are in the lower left hand corner of your pictures, I have plenty of them on my property and would love to know the name of them also! Since you have a much better photo than I do, I hope someone answers your request. I am still looking at your other photos, will make another comment if I do know what they are. Thanks.
Instead of making a composite (compressed) single image of these five pictures, why not post each of them full sized? You can put 5 full images in a single post, or you can put one image in 5 separate replies in one thread.
That will make it much easier for those with less stellar vision to see details in the photos - and easier to ask questions about what you want ID'd, since there are several plants in some of the pics.
That said: I think R1/R2 could be Tamarix ramosissima, and S is Miscanthus sinensis - if you are asking about the grass/seedheads in the foreground.