Unreal Engine 5 Serene Underwater Scene like Subnautica using the post process material

I’m creating a calm, Subnautica-inspired ocean space in Unreal Engine 5 and need a level artist who can make the lighting and ambience. Think soft caustic patterns on the sand, gentle god-rays filtering through a clear surface, light blue-green fog volumes that roll off with distance, and subtle particle drift that suggests a living sea rather than an empty pool. The mood is natural and serene—inviting, not ominous.

Visual complexity should stay in the “essential elements” range: believable rock formations, sea-grass that sways with a world-position offset, scattered coral clusters, and a few schools of simple fish following spline or behaviour-tree logic. I’m not chasing hyper-real textures; performance-friendly meshes and smart material work are enough as long as the overall scene feels alive when the player starts to swim.

Deliverables
• A UE5.3 (or later) map (.umap) with all materials, post-process volume, and water body settings intact
• Blueprint or Behaviour Tree handling basic fish movement and idle looping
• Read-me or short screen-capture walkthrough showing project settings and any custom console commands used for the lighting look

The scene must open in a vanilla install of Unreal Engine 5 without additional paid plugins. If you have existing water caustic materials, distance fog tricks, or colour-grading LUTs you like, feel free to incorporate them; just document anything that isn’t stock UE content.

I’m ready to review early viewport clips or stills as you block things out, then iterate once on the final ambience pass before delivery. Let’s make a slice of ocean that feels effortlessly peaceful the moment you dive in.