Post drawings,by doing that,more people will critic your art and maybe they can give you some advice or post their own art to help you grow your forum from this guild.I do that some times.Now I just post this video:
http://www.youtube.com/watch?v=hgX3mU_KDA0people be honest,and tell me what you think of it,and post something else to this person,so his forum can grow bigger and get better.