Because you serialize the image meta data and load it to the lof_gallery_album_image.params field you make it impossible to execute SQL updates to individual records outside of the LOF User Interface.  I have thousands of records I would like to be able to access based upon unique file names(SKU). Your design prevents records and field updates via SQL.  Keys fields such as image file name, description, title, meta title are wrapped in the serialized data that are inaccessible without troublesome parsing.  Your product limits updates to manual key coding and thus makes the whole process unacceptably slow.  Not sure why you did it that way.  I'm sure you have not considered this consequence to a superuser of your module.