This is cool. I don't see to many jelly fish art pieces here within the art blogs. Are these pens a brush pen? Like watercolor or ink? I've been eyeing up some different types of brush pens but not ready to take the leep. Right now I am mainly painting with oil's and watercolors..although I think my watercolor abilities need a lot of work. I'll have to take a look at your other posts .. The Cacti posts. lol.
ps- the bubbles look like eyes .. and I kinda like that.