As far as the shadows go, you need to check out your light setup. If there is no front wall on the room, through which the "photograph" is taken, light may be coming through there. If the window has glass in it it will still cast a full shadow, even if you have set it to fully transparent (a future Anim8or release will no doubt address this) so it is best to have no glass in the window in this instance.
Just a small observation: in the "Fixed" image above the shadows of the chair legs do not meet the legs themselves, which would suggest that the chair is hovering a little above the floor. Also, the shelving units seem to have ultra-thin sides, made of a single plane rather than a box. This could be the look you are going for, but I think it might look better if the cabinets were more solid. Great work so far though, well done.