The Undersea Temple City

Fictional underwater scene with glowing yellow mushroom-shaped structures, various fish and aquatic creatures, and a blue moon in the sky.

This illustration was for my MFA thesis. I wanted to depict an undersea city, built by ant-human hybrids, organized around the study of submarine life.

The buildings had to look futuristic, yet organic, somewhat biomechanical. I wanted to evoke a sense of wonder and awe, as well as abundance of life with fish and coral and a couple divers.

the process

step 1: Ideation and sketching

I started by drawing on my iPad. I drew some ideas for the main temple structure, as well as what sort of fish I wanted around, and even an idea for a deity that might be worshipped by the denizens of this city, which I had decided to name Pecca Pocca.

I loved the idea of a large dome-like structure that could be the site of study and worship. I wanted everything to look like it could be made from coral, and have a warm glow that would contrast with the cool blue of the surrounding ocean.

I thought it would be cool to have a long spire that could transport oxygen or other valuable materials from the world above. I also liked the idea of a massively tall structure that could span a huge range in depth and thus be used to cultivate and study all sorts of marine life: from deep sea snails to basking tropical sharks, and everything in between.

During this stage I mocked up a rough thumbnail that ended up inspiring the final piece.

A collection of illustrations and notes featuring an underwater scene with a coral reef, a detailed fish sketch, a colorful sea dragon, a mushroom with intricate patterns, and a fantasy landscape with a tower, planets, and fantastical structures, accompanied by handwritten notes about a location named Pecca Pocc in the Pacific Ocean.

step 2: the inhabitants

For the inhabitants of this undersea city, I sketched some humanoids: descendants of current day humans, but with greater capacity for collaboration and communal effort.

I dressed them in sleek wetsuits. I also wanted to add some futuristic tech, so I gave them a “melon” like device attached to their forehead, which might allow them to communicate via sonar like a beluga whale. Since these humanoids contain ant DNA, they have highly sensitive antennae sprouting from their sinuses. Therefore a sonar sensor positioned over these antennae would make a lot of sense.

Sketch of two humanoid characters with exaggerated muscular features, one on the left with short hair and the other on the right with a breathing mask and dome-like hat, both in relaxed poses.

step 3: thumbnails

I drew three thumbnails for what would become the final painting. I ended up choosing the first one I drew, but decided to add in a large whale in the foreground to add movement and visual interest.

Abstract painting of fish swimming near glowing objects in water.
An abstract, digital painting of an underwater cityscape at night with a large, glowing dome and fish.
A whale swims through an underwater city.

step 4: tight sketch

Once I’d chosen a thumbnail, it was time to create the line drawing, where shapes, structures, and creatures would be defined. I did this part digitally, using Procreate on my iPad.

A fantasy underwater scene of a large mushroom-shaped structure with intricate patterns.

step 5: graphite transfer

I printed my digital line drawing out at size (28”x18”), tiled across 8 pieces of letter size paper. I taped this down over my canvas, with a sheet of carbon transfer paper in between. Using a ballpoint pen, I went over each line to transfer it onto the illustration board.

Then I went over all the graphite transfer lines again in technical pen, which I knew would be better to paint over in acrylic.

A detailed black and white line drawing of an underwater fantasy world with blue tape pieces on the border.

step 6: paint

Finally it was time to paint! I started by blocking out all my values in black and white and then going over the whole thing with a raw sienna wash. I thought the orange ground would lend depth to the overwhelmingly blue scene, but didn’t realize how much extra work I was making for myself - every last inch of that orange had to be fully covered in blue paint! Almost none of the original ground was to remain visible.

Once the monochrome ground was established, I painted the whole thing in acrylic, moving from the background to the foreground, using an airbrushing of gouache to achieve the glow effect on the structures.

An in progress painting of a fantasy underwater scene of a large mushroom-shaped structure with intricate patterns.
An in progress painting of a fantasy underwater scene of a large mushroom-shaped structure with intricate patterns.
An in progress painting of a fantasy underwater scene of a large mushroom-shaped structure with intricate patterns.