Your color scheme is very interesting, and mostly appealing. The blues and browns go very well together, with the exception of the normal text color. That blends too much with the blue that you are using, and makes the text hard to read. Lighter colors, like the light blue link colors you are using are easier to read.Your cell highlight color, however, then makes the links hard to read.
Graphics and images:
Besides the two icons on the side, graphics are pretty much non-existance. If you cannot make your own images, you can request some here. I would at least go for a banner, if not some custom on/off images or menu buttons.
Forum topic/theme and board content:
RPG, so cannot comment much on the topic, as it is really up to the individual RPGer.
However, from your description in your first side table, I get no indication that it is set in NYC, but your boards suggest that it is. I would include that information in the initial board description, as that is the first thing members are reading, besides perhaps an advertisement.
Not sure what your definition of "M" is, but for offical ratings it means "mature", content of which nature is not allowed on Proboards. I would clear that up, as you should be making sure all content is at least PG-13 (or "T" if you're using that rating system).
While adding notes to a person's account is helpful for admins, that really doesn't do much in the way of letting the member know they have done something wrong. I would add PMing the person with a warning to your policy.
I do like, however, that you separate RP rules from board rules; that makes things much clearer than having them together.
Coding and odds 'n' ends:
Mostly posting/profile mods. I'm not sure you need both the code that removes avatar limits and increases it, I think you just need to increase. Your affiliate table would fit a bit better if you were to make it the same width from your side table to the other end of the board; related, your fade on the marquee starts in the middle of the table cell, that'll be mostly fixed with a resize.
Much promise, and will probably improve once we can read the text. I would also work on advertising to attract new members, and post a few threads in your general boards to get your members started.