If you go to www.edwardrhamilton.com you can find books fairly cheap and no shipping charge. I have bought many quilt books here and purchased a landscape quilting one for around $7. If you get the "Sewing With Nancy" television program, it is her book. I have not started my landscape quilting yet, but I have taken many photographs to show shading and where the sunlight hits the trees. They use a lot of fuzzy cutting for foilage. Yellow markers and black sharpies help in highlighting and shading also. They recommend you do a small project to start out.
I saw the confetti lady and she uses very small pieces. I think it was on one of the sewing shows I watch and I might have taped it. You could check youtube or if you know her name look for it on the internet.
Don't take on too big a project and get overwhelmed. I started with small landscape quilts that I have hanging on the wall. Good luck! Go for it and give it a try.
Cut scrap materials in tiny pieces, using different colors to make the contrast, and then when your pleased with the desing put a black tulle on top and quilt, there is a lady she used a powder to keep the pieces together, later you addd all the emb. that you want