To minimalize a 3D model in low poly art, reduce its polygon count by simplifying core shapes, removing non-essential details, and keeping only the most recognizable features.
Use fewer flat faces for curved surfaces (e.g., a cube-like head instead of a smooth sphere) and cut tiny elements (small props, intricate edges) that don’t affect the model’s overall look. Tools like decimation (auto-reduce) or retopology (manual simplification) help, but prioritize the low-poly style’s blocky charm while keeping the model identifiable.
For a practical start, hide small details in your software first, then use decimation gradually—pause often to check if the key shape remains intact.