There are differences between Tolkien’s races and the D&D ones (especially considering the many D&D versions). D&D’s elves are shorter than humans, not taller. The officially licensed D&D movie (not that great) did include a joke about a Dwarven male wanting a Dwarven woman with a beard big enough that you could really hang onto it during sex. Apparently it varies based on which campaign book you’re using. And yes, Tolkien’s female Dwarves all apparently have beards. So you’re quite correct, no fear that you’ll get howled down by a chorus of neck-beards (over this post at least! *sigh*).
Generally Wizards of the Coast changed their descriptions of the now-standard ‘fantasy’ races that Tolkien created to avoid licensing issues, and to give themselves more creative freedom. Those guys didn’t have a lot of money at the beginning, and to their credit their work has really given the fantasy genre a lot of energy.
I do like the various feelings expressed by the different body language of the women in the drawing.
Hah! Lacking therapy, I have learned to obfuscate my own geek tendencies instead. I just say “there are subtle differences” like I’m too lazy and bored to lay out what they all are, but of course I know, because doesn’t everybody? It’s an evolved mechanism to save me the labor of true geeky pedantry and it has the added benefit of protecting me from the always-hunting swarms of bitey predators who can smell some “wrong on the internets” from the far end of the Kessel Run.