I'm A Banana
Potassium-Rich
They all look like celebrities from the 70's, so there is an element of idealized beauty to them.Here's a classic work of art that appeared in AD&D in the past. I'm not sure any of them look like the ideal version of a fantasy adventurer. Maybe the elf woman?
If the goal of D&D art of adventurers is to present a fantasy hero, then there's nothing wrong with presenting that fantasy as something that's a little grittier and less polished than most of the art currently in the books. Lawd knows my characters are often gross idiots, and that's what I want to see. Like, I had trouble finding art of my Theros alchemist, because I couldn't find enough weird lookin' snake kids. He was not charismatic, he was not traditionally attractive, he smelled funny and gave you too much information about the functioning of ancient greek toilets. My current autognome is a janky lil' guy who is held together with duct tape. I played a tall, gangly, dorky Circle of Stars druid. These are all heroes, and aren't hot, and that's kind of part of the fun.
D&D art these days has a lot of polish to it, and it looks good, and it is very idealized, and that's fine, but it can be kind of blandly homogenous. Like, we get it, you're a Big Hero Whomst Looks Awesome Doing Cool Stuff. But a lot of characters aren't that!