When electronics 3D models have unrealistic labels, it’s usually because the labels don’t fit the model’s surface shape, are the wrong scale, or use materials that clash with the component’s texture.
Realistic labels should follow a part’s curvature (like a phone’s rounded edge) or flatness (like a PCB) and match finishes (e.g., matte stickers vs. glossy screen prints)—if they don’t, the label looks detached from the model.
To fix this, use your 3D tool’s "UV unwrapping" or "decal projection" features to make labels conform to the surface; this simple tweak makes them look much more natural.