You can see his work on his website here and I have posted a few photos of his work below from his website. You should really have a look through his work, there are lots of wonderful pieces to see.
Plastic bags in nature stir up a few emotions for me. Sometimes I see a little bit of white plastic fluttering in the top branches of a tree and I think it is kind of sweet, like a flag or a lost hankie. Other times they are noisy and dirty and too many of them and I worry about the animals that get tangled in them or try to eat them… anyhow, my reaction to Josh's work is all good.