This is true
They looked really bad until Skyrim when they looked okay
Yeah, but to be fair, like all the non-human races looked stupid in Oblivion and prior.
The bosmer in Oblivion are just horrible, whereas in Skyrim and TESO they look more like an actual elf (and feel like a wood elf, if that makes sense).
The bosmer were supposed to look like this;
But instead looked like this;
And now look like this;