Yeah Hunter, he has a point, make a more detailed room, it doesn't matter if it lags because your taking still images...
Use proper speech bubbles and work on your posing: I give it 7/10 also because the posing isn't the best, needs more in depth walls and clipped walls. Yeah and that light really needs a source!
Also just because your using Gmod doesn't mean it is meant to be blocky, take for example your favourite HLcomic site, they use detailed maps, it makes the scene so much more real, so my suggestion is work on a map now with all the scenes you'll need and bump up those graphics to full, not medium...
Goodluck