My suggestion is, that you can set some or may be one keyword for general using.
For example you went to Germany and visited lot of things - you have uploaded the pictures but you want that one of the keywords of every picure is "germany".
You can set an option "general keyword" so it appears below every picture of this album
Another possibility is that you can choose by a drop down menue several keywords you set before.
But there have to be a site where you can put the keywords in
I think it would do lot of things easier because you have to spend a lot of time for: title, describtion, keywords etc.
Thanks a lot for this excellent gallery and I hope you are inspired by my suggestions ^^
Rallemann