Ok i think i understand so instead of trying to make/get a AAA or a high poly model i should just create a simple and really crappy model in blender and use that as a placeholder and then later on upgrade that to a more high poly model
and what should i do about animations for the simple model i make i did buy a arm model off the marketplace how would i animate that? also if it came to that i needed a few custom particle systems such as electricity how would i get them?
If someone did check your portfolio they would care more about how efficient and well structured the code is and less about the looks?