Here are underwater creatures i did during concepting phase of Artstation: Beyond the Waves challenge back in the end of 2017. I decided push them a bit from being just a grey sketches, so here they are. But it's still a concepts, not a production-quality models.
Sokara Lokoleda
Baleda Besari
Funda Berarok
Kiknea Frostida
Diakidera
Here's some early sketches i did while searching for the right design . Some of them looks much more alien than choosen ones, but i decided to make creatures that would be more familiar.