Pages like these are OK when they're part of a set, but please P/C them (set the cover page as a parent, for example).

Also, try to pool related batches/books. You can upload directly into a pool; just create it in the pool section and add "pool:id" as a tag when you upload.

I can also refer you to http://moe.imouto.org/help/pools & http://moe.imouto.org/help/post_relationships

Just drop a PM to one of the mods if you need any help.