Most importantly, thanks everyone for their comments and critique!
It think it would be helpful to look up some references for that kind of architecture. I believe a series of arches supported by columns is called an arcade, so I did some googling and ended up with this wiki full of interesting drawings from a french book on architecture.
http://en.wikisource.org/wiki/Dictionary_of_French_Architecture_from_the_11th_to_16th_Century/Volume_1/Blind_Arcade?match=fr
Columns can have plenty of interesting styles. A good picture reference here on the classical orders
http://en.wikipedia.org/wiki/Classical_order
There's a picture of the Santa Sabina here, whch uses composite order columns to support the arches.
http://commons.wikimedia.org/wiki/File:Santa_Sabina.JPG
Thanks a lot for the references! I'll see if I can't put them to use. While these are a bit more standard european than I was originally intending (I actually had a bit more of a mayan, maybe indian (or spanish??) kind of style in mind) it's been a great help in defining what exactly I should do.
I'm not sure about this, but I don't think you can get the kinda light effects with a black outline...? The light supposes to be there due to glare, and the idea of having a black line in glaring light didn't seem right in my head. Any takers?
Yeah, it's not done; the background isn't going to be pure white nor is the outline going to be black. I just haven't drawn the background behind that yet, that's all.
The top curvature of the archways could be better too and the few upwards streaks of light at the top seem strange.
Yeah, that curvature bothers me slightly. I've touched upon it slightly, but I'm not sure if I'm going to get too much more out of it. And I wasn't sure what I was doing with anything above the arch itself so I hadn't done anything about those yet; in fact I'm still not absolutely positive about that part, specifically.
To show that the light is coming from the outside to the inside, you could show the light coming through and hitting the floor.
Yeah, I was planning on doing that in-game so that I could add a hint of motion to it as you move through the room, and maybe have it shine on the character as well. But I took your suggestion to heart and in the most recent version I've touched upon it slightly on the floor.
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Is this any better? I've added a bit of lighting to the floor and I've started trying to define the archs a bit more (with some help from crab2selout) while trying to retain the more simplistic style I was going for.
Obviously still a WIP; as evidenced by the white bars on the right side where I had to move the pillars because somehow they became uneven while I was copying and pasting them.
C+C please? Any thoughts on the direction thus far? Should I try and study architecture a bit more as to better deal with the archs?