Frankpolygon's perspective is what I'd think about plus the principles discussed relate too other shapes/subd processes as well e.g. Hemispherical intersections "Segment matching is a fundamental element of most subdivision modeling workflows." It's not the topology "A significant problem with trying to formulate a fixed…
@zylan Determining if a high poly mesh is acceptable really boils down to how closely the shapes in the model match the shapes in the references and whether or not the topology subdivides cleanly, without generating any noticeable smoothing artifacts or other surface quality issues. If the shapes and surface quality checks…
There are a few triangular faces here. I’d like to preserve this large curved surface as much as possible and keep smooth transitions at the corners. How should I retopologize this?
Check how it looks when materials are applied, and it’s put in a scene with lighting and camera angle. Many of these tiny issues become essentially invisible, in situ. But yes, triangles and ngons are ok, as long as they don’t adversely affect the shading. Usually fine on flatter areas.
I'd highly recommend that you read those linked resources I had posted then likewise test iterations of your particular object, therefore putting into practice the 'How and Why' behind the fundamental reasoning described by @FrankPolygon Now for the highlighted areas above, they're intersecting control or support loops and…