One Weird World Collection

Im trying to finish off and collect together a series of interconnected short stories in a small volume and either have it published or publish it myself on blurb.com i want to do the cover myself either photographically or as a painting. The first stort is about being able to manipulate the speed of or passage through time. I mention being trained by watching snails and hummingbirds. To slow the hummingbirds is impossible but the protagonist can live so quickly that it appears to fly in slow motion and similarly snails can be viewed racing across a surface as time passes slowly about. My idea is to paint a hummingbird frozen still in flight while feeding and in the background a blurred figure through glass, clearly moving faster. Perhaps the back cover could show a still figure as a snail is blurred racing along a tank.