Good job for following the guidelines when you posted this map, and it’s a great start for your first ever map.
I will suggest a few things here:
Possibly tone down the amount of bright lighting/neon effects?
It’s almost blinding with how bright some parts of the map are. I suggest either toning them down, or just removing them completely.
Make more custom assets?
Instead of using other people’s models, maybe try making your own models to utilize and improve your building skills! You can always follow building tutorials found here on the forums if you ever need help.
Be a bit more creative.
Maps like these are a bit overused within the community. If you like making maps like these, it’s perfectly fine to make them. Otherwise, you should try to look for other themes to work off of!
Nonetheless, this map is a great start for you! I see great potential in your building. If you ever need anything else, just DM me or reply here!