I see a similarity in the camera angle, that's it though. There's a similar-ish artstyle, but the images aren't all identical.
In term of level design, N&B (without having played it) seems very, very empty, there's nothing at all to see there, except some trees there and there. In the YL image, there's a LOT of things to see, and the level seems to expand beyond the fog. The level feels big. In the N&B's image, the level feels so small, it seems you could walk to the to the limit of the level in no time. YL's level is also very vertical, while N&B's is very flat and uninteresting.
Also, the YL's level seems more organic or natural, while N&B's seems, just... circular? I have the impression that the level is circular, with a perfectly circular river (or just a path?) right in the center, creating a perfectly circular island-thing in the middle. It looks really boring and uninspired.