I don't know if this is supposed to be a troll post or not. I'll assume it is not. Anyway: examples? I only see one example on the Artist's guide page. It shows a picture graphics which is actually larger than it will be shown ingame for example in the production menu or the HUD. So it's allowed to not look good according to the text :)

And then again, what looks good and what doesn't is obviously highly subjective. Make it so that it looks good to yourself, the modeler. If you are concerned about other models, such as the foundry, feel free to grab the blender file from the resources repository and modify them so that they actually look good (to you) and suggest them to be changed accordingly in the game.