Completely agree. I should be able to say "that's an elf!" even without seeing a characters ears. Their facial features should imo be a bit outside of the human spectrum. For half-elves, one should take a look and think "hmm... either a fine-featured human or a heavy-featured elf?". Same for (half-)drow, of course.
As it is currently, the male elf head makes me think of a particularly sturdy-looking human peasant. Really, the jaw is huge! The eyes slant the opposite way, so to speak, which makes the character look somewhat... spaced out rather than keenly intelligent/of alien beauty as would be expected of an elf. (I wanted to say I was reminded of Oblivion faces, but this would be going too far...)
I would also add that I wish halflings had better proportions. They are said to be more or less like scaled-down humans in their lore, but in BG3 they are more reminiscent of real-life humans with dwarfism.
Well I was confused about Shadowheart being a human or elf had to examine her to tell for sure. Tieflings are what bought me in this game, I have never seen such a terrifying looking Tiefling (In a very, very good way) in a game before. My first Act 1 was for Tiefling warlock. I have to agree Elves do not really look like Elves but my guess that is because 5th Editon say so, unfortunately.
Additionally I doubt we will receive any change in the way they look, we might get some new faces but that is it.