I am curious as to render times. I typically render everything at 3750 x 2100 px for 500 samples. Most of the models/scenes I do take anywhere from 40 minutes to about 3 hours, depending on complexity I would say.
http://www.textualcreations.ca/Flash_Gallery_KeyShot/KeyShot_Gallery.html Over the last two days I have modeled and rendered two enclosed architectural scenes that are large (in scale) but also use a lot of area lights.
This board room took just under 6 hours.
https://imgur.com/x1ADwtQ This warehouse was about 10.5 hours and only about 60% done when I stopped it. I had noticed a post had accidentally been deleted.
https://imgur.com/c6heebH I have to rerender it.
The question I have is this. Is the size of a model and/or the amount of area lighting what is causing the longer render times? I am assuming it is not the scale but the area lighting with all those light particles to calculate, as I did another warehouse not long ago that had no roof and did not use any area lights which didn't take too long to render save.
BTW, I am only showing my work to show my style, I am not looking for any critiques at all.