The crab left me cold, so I went back to designing art gallery posters. In this one, I used a version of the original picture in a clipping group with a layer that had a scallop shell as the only black areas (the shell is a brush). Beneath this, a second version of the crab image was visible at reduced opacity. The font is Trajan Pro, presented in 80% gray. There is a Cove Gallery on Cape Cod, but this isn't one of their posters.