Drawings With Fishy Themes - So Soothing to Watch

Places like aquariums where you can watch fish serenely swim around can have quite a calming effect, so much so that visits to them are sometimes advised as a stress relief method. Depicting such a relaxing atmosphere can unlock an artist's imagination and bring to life worlds we've yet to dream up. 

Have any of the illustrations below got you caught hook, line, and sinker?