[@Bartimaeus] The character sheet serves it's purpose, provided you want to know all that information. Most arena fighters are concerned with how your character fights. Things like who they are married to, who/what they want to have sex with, and what their fears are probably aren't important enough to warrant their own section. Some people will find fault with having so many hiders. I heard they are annoying to click on with mobile devices. If you want the character sheet to be smaller so that they can be more easily browsed in the character tab, you could just lump everything inside one hider. People are going to be most interested in what your character can do in combat, which is another reason not to keep that stuff in hiders. Not only that, but it's at the very bottom of the sheet, which is typically where you want your miscellaneous/unimportant stuff. I would consider simplifying the appearance and social behavior section to just a space where one can write a paragraph. If you really want everyone to know your character is married to a lesbian lizard goddess, you can include that in their history/bio section, which would be pretty low on the sheet.

From an aesthetic standpoint, it presents the information it wishes to convey. It's by no means the fanciest, but some people get so into making a CS that it's almost impossible to fill out and even harder to read once all the information is in place. Needless to say, that's kind of the opposite of what you want a CS to do. 

If someone wanted to fight me in arena or have me fill this out before joining an RP, I wouldn't be deterred. It's not a bad sheet.