its not that hard,,, it is possible. make a triangular shape and fill it with a color, go to Filter > Distort > Shear and wiggle it around. Then airbrush it with white at about 70% on the edges and such. then just copy it and maybe add some gradients and a background colour? but it would take a while to perhaps get so many of those tentacle things. go to www.robouk.com theres lots of tutorials to make such tube thingys.