The Fog

A 3D environment concept built in Blender and additional polish in Photoshop, the dock and monster are from Sketchfab:

https://sketchfab.com/3d-models/siren-head-e2a7eca5bc814b6ca5b2d2e85f478360
https://sketchfab.com/3d-models/charlton-auxiliary-pumping-station-66828558c20947ee99b28186bd4ed990