The only suggestion I'll make is to make some of your forums available to the public. You're more likely to earn recurring traffic and new registrants if they have a little something to introduce them to the community.
I said my part, paid my dues. Now I reap the rewards, I poke my head in every now and again, but I'm not exactly bussling with conversation. Though I'm certainly not interested in having my account deleted. I do have a certain history here.
Dragon Ball Z was always a very vibrant show. sharp and crisp. Your banners have style but bring out some brightness and color to really make them pop. You can still adjust opacity without making the image super super dark.