Thank you And sure. Just try to keep it mostly on-topic, but crossovers are fine.
After you join the group, you can upload new art and submit directly to the group from there. Or, if you already have art posted to your own gallery, just go to our group page, click on our Gallery tab, and then click on the little + button on the far right hand side. Make sure to select the appropriate folder (ie. Octarian art goes in the Octarian folder). Let me know if you need more help.