My absolute favorite thing to do in Photoshop is digital collage. Applying filters, blending papers, adding cutouts -- it's the next best thing to crayons. For collage work, it's hard to beat Kathryn Balint's Ultimate Altered Art series. The digital papers and elements are pretty, and funky, and very versatile.
I used several of her kits while creating this piece, The Little Prince. The model is my grandson.
Background paper is from Kathryn Balint's Artisan Papers; bird and nest from Kathryn's Bird Sanctuary; and crown from her Make a Fairy kit. Everything has been colorized and blended. The glitter leaves are Ztampf's Sparkle Sprays overlays.