Likes:
-I like the simple layout of the skin. It looks good and has the right feel for your forum.
-You don't have too many categories, which is great for new members. The last thing you want is new members posting in the most obscure areas.
-You have relevant forums for a graphics forum. All your forum are essential in a graphics forum, based on graphic design. Its nice to see that Introductions is at the top, as new members need that extra little bit of security that they won't post in the wrong area.
-I love the banner 😛 :yes:
-The banner fits in with the other colours, so that was a good choice of skin.
-You have a simple navigation bar, and your forum is easy to navigate. Thats really good for new members, as they don't have to keep on searching for what they want.
Dislikes:
-This isn't much of a dislike, but you will need to make that register button more visible. Maybe having a button just for register will attract way more people. Your forum has potential, but if someone can't find that button, whats the use in "potential"? 🙂
-Its a bit large. There is a whole gap of gray space going down the center. Reduce the size of it and everything will work together.
-Is that ad at the top necessary? If it isn't, remove, or move. Its quite distracting, but if you can't move it, you will need to convince people that its not there (sounds dumb, but when you have great forums, those ads just disappear from their mind)
-SOTW could be Official Contests, as you could also, when time goes on, have an official contest, like a wallpaper contest for the forum.
-I'd say there isn't anything unique about it. Its sounds like a novice comment, but its the truth. Its hard to find something unique about graphics forums, but having color is essential. This is the most hardest thing to achieve, but I think you'll figure it out for yourself 🙂
Hope that helps a bit.