I've created image stamps in photoshop to manipulate in landscapes. Interesting and fun to experiment with forms, shapes and colors.
This is a scene from a picture book manscript about a family of Virginia Opossums in the Blue Ridge Mountains. Note the pine from image one has been enlarged and reused here.
I actually used this background in the image I submitted to the "Draw This" prompt last month for SCBWI's illustration contest.
Winter Scene repeating and altering sizes and colors of trees.
I included a building with this fantasy tree in a night scene.
Playing with forms of plant life in this collage of my own clip art images.