yesterday I watched a YouTube thing about D&D art by edition. The OSR dude (with obvious bias) talked about grimy, gritty 1e-2e art versus the young adult fiction/superheroic look of 5e art.
This gets me realizing part of why I like 4e's art most; 4e art's got some of the technical polish I really like in 5e, but it's still obviously different styles, different artists. In a subtle and probably unintended way it says "there's no one way to run or play D&D."