It's looking nice, dicecube.
When you're taking inspiration from another map (which is totally fine and everyone does it), it's best to switch up the qualities to differentiate. For example, you should find an alternative to the truck -> displacement mound -> crate system in the middle of your bridge. By changing that, you'll increase the uniqueness of your map while still retaining your immediate influence.
You might also want to figure out ways to make the bottom bridge area more appealing to play in.
You've got some very nice displacement work, going. And the mood (skybox setting/lighting, ect.) is awesome.