I usually like importing over the previous gallery from updates, but seeming as I've recently converted over to android, I'm in shtuck. Is there anyway to crowbar open an APK file?
I'm not sure if you've seen the response Majalis gave someone else in a similar thread; but here's the link to that.
Although, the above link mainly focuses around transferring saves between different android versions. As for the actual in-game progress and gallery, if that doesn't transfer upon the new installation I think one of the only other ways to solve it would be to root your android device.
Also an app such as Total Commander might work too, not sure.