Hello, and sorry. I had no idea I was set as founder of this group... and I've also been out of DeviantArt for a long, long time. If you still want to, of course you can join.
Since I've never managed a group before, I'm not really sure if I have to be the one inviting you. In case that is so, do PM me and I will try to look into it as soon as I can.
Once again, sorry for the long wait; I also had no idea about this situation.