Forum:Image categorization issues

Well it has been a long work but now almost all the images of this wiki are categorized. Also I'm not entirely satisfied on some point so this is a forum to ask you what you think we should to improve the categorization now that I'm not the only one who is doing it.

Character images
First I want to emphasize that I have written some rules on the categorization of Category:Portraits and Category:Characters images. So far nobody complained to much so I take them as ok, but it would be good if they were applied.

I think the Portraits and the Character boxes categories are up to date wrt to the rule except for the Shiki animals, but I'm not sure what to do with them.

There is some works to do concerning the Category:Characters images, but it's because I don't know what to do when there are several persons on a page.
 * When it corresponds to a named (at least identified by an article) group, like Emporio Ivankov's Dancers.png or File:White Berrets.jpg, I think that we shall moved them to the char box categories.
 * When it does not like File:Longarms.JPG, File:Torino1.png..., then I have no idea, maybe a new category is the best.
 * When there is two or more named charecters like File:Buggy- shanks.png, well a non written rule is that I generally change this category toward another that is not classified by character name generally the Plot images one. There is just Mozu and Kiwi where a choice has to be made.

I think that it may be good to have a Personality image category that contains the image that are in the Personality and Relationship paragraphs. It would fit better for images such as File:Nami1.jpg or File:Boa_Hancock_Angry.PNG. It would also remove some group images that have been place in the Plot category by default (like File:BoaSky.jpg). This could be easily sort by character name like for the others.

Information and Trivia images
Well this 2 categories are a big mess, we should decide which category shall contain what, in particular we should decide in which to put the sketch images, the differences between anime and manga, the drawing mistakes, etc...

Plot Images
The content of this category is quite clear but the categorization order is quite random. Some images have the PAGENAME redirection, some other have not. And since there is no name rule it is quite difficult to sort them. As a result it's quite hard to find an image without checking all the gallery. So maybe it would be good to find some sub-categories.

SBS images
The only question is if we should sort them by volume or not, given that they all have not exactly the same prefix.