I know the blizz art team usually outdo themselves when it comes to visual representation, and although the monsters we saw looked great, the zones overall seemed very stale and kind of "been there done that". The desert is nice, we havent had a desert in a long time, but other than that theres 2 forest/jungles on zandalar, and three forest/highlands on Kul'tiras (with one of them having a creepy vibe to it)... I dont know, it just seems a bit lacklustre, and the colour palette is just too drab, and not in a cool kind of way.
Maybe i just like big flashy zones, but for me personally Cata had some of the best looking zones ever. Vashj'ir, Deepholm, Ulduum (far too few deserts in wow tbh) even the Twilight Highlands were ominous and different. Personally nothing that weve seen so far in BFA compares to these, they are just reskinned jungles and forests.