Coaster
Right off the bat everything seems quite arbitrary and random. The signature elements are there however they connected extremely weirdly and untypically for B&M. And while the track is shaped pretty smooth a lot of the elements are distorted and don't look right. Two elements I really think are well executed are the Immelmann and the Zero-G-Roll but other than that there is not a lot to praise significantly. The first drop on B&M Divecoaster are not immediatly straight down but rather have an increasing radius until it hits 90° right before the pull-out. I think the second drop actually looks a bit better concerning this. Also the Diveloop's entrance is too steep and drawn out on the halfloop which should be the exact other way around. The rest of the coaster consisting of the twisty bits is fine - it's executed smoothly and more reasonable then the first half. Also the supports are partially extremely broken - like literally - especially on the first drop and zero-g-roll are some very odd shapings, also the beam's are mostly too thin. In the ending the thickness is fine but anywhere else it wouldn't be enough to hold the heavy coaster. In some parts the beams are even intersecting with other objects so I recommend to place them more carefully in the future.
Scenery/Theming
The Scenery is okay to good. Especially the pavements and the observation tower are a nice addition to the park despite not being too special. Then again the lighting is quite random with one even hovering above the ground. It's just my opinion but I think the purple colors don't fit the green track very well. Besides, the terrain is okayish. It's hard to create realistic terrain in NL2 so I think it's fine, maybe a bit to round and tall in some regions.
Overall it's a mediocre coaster which could use all sorts of improvements. Everything seems quite rushed and not thought out at all. Some objects like the supports I have no idea how you overlooked that. I mean it sometimes happens but these are really obvious errors which shouldn't be hard to correct if you put more time into this creation.

