Personnaly, i think, Vertical format aren't really good, because you lost MANY space :/.
But organizing monster by lvl aren't a bad thing
The xp tables are a little useless i think, only the xp at same level should be see (in the monster info). People know that the xp just go down so they know that they will gain less xp :/
I don't like grey & black but that my opinion

(white & black a really good for people w some eye problem).
But it's good other than
