[Useless]

There's a couple of factors at play here. Many TGPs don't allow more than one submission per day. So if you submitted both galleries on the same day, no matter which domains you used, you could get banned.

Most TGPs won't list identical content back to back no matter the page change. You'd have to space it out a bit and allow some breathing room between subs of the same pics. If the content is already over used, you won't get listed anyway. But you shouldn't have to worry about being blacklisted for over used content.

No matter what changes you make, always submit using the same name and email address. Reviewers will ban you without a thought if it appears that you are using two identities.