HELP, MODELS?

Hey guys, so I’m currently working on my final thesis portfolio hand in that’s coming up for my masters of architecture, and my work has been quite model making heavy. I’ve taken nice pictures of the models with a white background BUT I am legit losing my mind cause can I keep the background white? Like the pictures are nice to look at but usually I always merge a model with its sitting so it all looks like a proper architecture render but 1. With these models it’s near impossible to put them in a setting since it’s literally my house transformed and 2. I think it’s gonna look crappy cause the models have some transparent areas where it would look weird even with hours on photoshop. Does anyone have any advice on what I should do to make it look better? If you’ve made models for a final presentation and used it for the drawings/perspectives, how did you do it?