Should have charged them an extra $400 and staged it proper. For $20 though they got more than they should have. This isn't my cup of tea, but I'll still tell you what stands out to me.
1. Should have closed the door. More on the shelves or nothing at all. Power strip. Wrinkled uneven rug. OCF in shot.
2. Unkempt bed, dirty rug, empty shelves again, uneven blinds, water damage/sheetrock damage top left, cropped out the vent all the way.
3. Strip light is ugly and off center, I'd have left it out. Window too closed looks like it's hiding a nudist neighbor overlook. Cords, cluttered on left, boombox in a kitchen, bare branded soap.
4. Not much saving that bath... But still branded soap, used toilet tissue roll, brush in the corner, cracks in the wall, and (know not your fault) God awful colors to work with. Color balance is off and under exposed a bit. Smears on the mirror.
I mean so much of this stuff is prep work and staging. If you want to get into this type of photography you have to give them more than a GWC can. Obviously this company didn't want that. I've only worked with a few (from construction days) that didn't bother with a fresh coat of paint... always... That said, I think you gave them more than they deserved and you didn't really get much value back in the way of portfolio material. Not your fault really. You should be asking about what the staging arrangements are and if there aren't any, then add that to your quotes and either do it yourself or develop a relationship with someone you can bring in on a regular basis.
Again, I know you couldn't do it with this company. The photography isn't bad. Just watch out for cords, shooting into multiple rooms through multiple doorways, and don't be afraid to photoshop the heck out of the rooms when you're compensated for it. I mean up to removing vents, receptacles, cords, stains. Cracks are a no no too. Fake, yes. But your job is to get potential customers to go look at it. It's the agents job to sell them in spite of the imperfections.
Yes, I have severe Equipment Deficiency. No, the pills don't fix it.