There aren't many isometric RPG's that have much if any in the way of char customization. Many (even modern day iso RPG's) don't even reflect what armor you don ingame. *Looking at you Spiderweb Software* But at least I know that's not the case in this game.
The problem with detailed char customization in an iso game is that you can't even see most of your choices unless you run around naked the whole game so developers just don't put it in.
Been awhile since I played it, but I think Sacred 2 only had a very limited char cutom option. 3 or 4 hair styles, hair color option and skin color option.
Always nice to have options, but after the first few hours (assuming the game reflects what you wear) my chars are covered head to toe in armor anyway.