I'm way behind on my Photoshop Artistry workshop, but just have needed to do some nitty gritty get the hands dirty art. Today, though, I practiced on a technique Sebastian calls "pasting in". I scanned an image of my hand painted fabric art piece and then embedded my selfie. I added a stroke outline and used the pencil in PS to doodle in and around the selfie.
I also played with this image of Starbucks with its unusual signage. Sebastian has suggested we look for things that are out of character or incongruent. I think this qualifies.