The fastest way to get real fat is to grab the Githyanki half plate off Lae'zel and put it on a human dude. The phenotype for the armor model is instant Santa Claus hehe
But yeah, more age and body types would be nice.
I wonder why they don't just allow us to edit our Character's appearance at any point? Would be easy enough to do from the Character sheet menu. Seems a shame to have to roll a brand new toon if all you want is a different haircut, or to look more grizzled, change your skin tone or voice set or whatever later on.
I think they could really take a look at MMOs of the last decade to up their game in the Character creation process. That's where most of the innovation seems to be now.
BG1 was pretty innovative for its time in that department allowing for custom portraits and sounds, but that was almost 25 years ago. BGIII seems to have fewer char customization options than similar fantasy games that came out like 10 years ago now.
Character creation is critically important for a D&D game, and especially for a Forgotten Realms flagship franchise like this one. For new people who aren't into it, they can load one of these origins toons and skip past everything fun pretty easily, but for those who are into it, its half the entire game. Getting short shrifted in Char Creation is killing it in the cradle for a D&D game.