I would Loose the Terra.es hosting for one...they are cracking down on adult content on their servers.
It's not going to make good with the TGP's if they list you, only to have your gallery's get shut down.
Ive found that once you get listed, it gets easier and easier to get a quicker listing.
I think that maybe they start recognizing your name and galleries.
When I do a gallery, I submit it to 5 big TGP's (more if im not lazy)
Marks Bookmarks
Snakes World
JJJ
Persian Kitty
Thumbzilla
99% of the time I get listed with these guys within 24hrs, if not that same day.
Whats cool is that other smaller TGP's will need galleries and list you you as well.
Make your gallery Clean, and USE YOUR OWN HOSTING! It will save you time, and you will make your money back with the signups.
It costs me about $20 a day of me to host my sites and galleries. I average 2 signups a day with TGP posting. (which is a lot less than most people from what I hear)
I look at it this way...30 min of work pays for my monthly hosting, adds a little extra money to my income, and sends about 3k of fresh traffic to my main sites.
I see people always asking..."how does one go about building traffic on a site?" TGP posting is a simple quick way.