The slimes was a 9 days project, making 1 slime concept a day. It was a personal project, spending no more than 1.5 hours on each character
each one was sculpted in zbrush, then rendered in keyshot, and finally comped together in photoshop with some painting on top.
some were definitely more successful than others, im a big fan of the blue, green and yellow ones, but i think some of the later concepts are much weaker