
The proportions aren't quite right.
I tried to guess where the left wall meets the ground. You can see that even a ceiling at the height of about 12ft would be much further down. (Assuming that the grey line in your pic is the ceiling.)
The table is about 7ft wide. I'd shrink it a bit.
Plus, when you've added details to the pic, it'll look more convincing, because everything back where Emily(?) sits is going to be about 5-6 times as small.
And if you plan on adding e.g. windows to the side walls, make sure that they are just a few pixels wide.
Good luck!
(It's 5:30AM here, so if any of this doesn't make any sense, either blame it on that or the fact that I had to learn english in school...
