The 'Random Album Pictures' section simply pulls from the individual pictures uploaded to those directories. There is no way to customize it at the user level.
The only features are:
-> Randomly scrolling
-> Selecting the individual picture (This opens the album to that picture, at which point the rest of the album may be viewed and you can then browse to other albums from that user.
-> Selecting the user name opens the users profile page.
Alternatively, you can also simply go to [Community -> Pictures & Albums] then start browsing by Category. Within each category are 'random' (specific to that category) pictures 9/page. There you can scroll page by page.
Hopefully this last option is more in line with what you're looking for.