I've always been fascinated by sea creatures, especially ones from the depths that have bioluminescence and look like they're from another planet.
this guy is a glass squid:
this here's a box jellyfish:
and finally we have the translucent pelagic octopus:
These were all drawn on black paper with a white gel pen, then to add color I went over the white ink with other markers or some highlighters.
Please to Enjoy!