Looks pretty nice for your first game
It's nice to see that there's at least some effort to the layout of the scenes.
Only remarks are:
It is a tad dark in the bathroom and dining room(?) scenes. (nitpick, I know)
The bathroom scene seems to have the same texture for both ceiling and floor. Try to use a different floor/ceiling texture for your rooms.
That hallway in the last shot seems rather empty, as well as having the floor/ceiling texture again.
What sort of building is that exactly? Try to think of what scene you are making, and compare it to what a scene like that looks like in real life. Fill it in accordingly.
There's a lack of illumination on those lamps, yet they cast off light. I'd suggest either placing small lights around each surface of the lamp, or enabling shaders, and applying the illuminationmap.fx in the "effect" field of the lamps properties.
I've been away for a while so the jury's out on my end as to which one consumes more memory, the tiny lights, or the shaders.
Sorry if I seem critical, I always enjoy constructive criticism on my projects but not everyone is the same!
I'm interested to see where you can take this.
Good luck in your endeavors!