30+ Ocean theme coloring sub-niche prompts for Ideogram Ai

Trying to create ocean-themed coloring books that actually stand out? Then narrowing your focus to sub-niches is the smart move. If you’re in the KDP or digital coloring space, finding unique angles within broader topics is what helps your books get noticed. This eBook is designed for Ai artists who want to move beyond the usual underwater scenes.

Rather than repeating the typical dolphins and coral reefs, you’ll find less obvious ocean-related ideas that still connect with what buyers are looking for. These sub-niches give your designs a fresh feel and make your content more discoverable in crowded marketplaces.

To make things even easier, the prompts are sorted into five themed sub-niche sections. Each one offers original ideas to spark creativity, cut down your brainstorming time, and help your books feel different from the rest.