Please note that I'm not an official level judge.
Design: This level would have been good in 1.5/1.6. However, this is 2.0, and comparing this with featured 1.9 or 2.0 levels, this is a completely different story. This design is mostly outdated. I'm not saying that this design is bad, it's just that this is way too simple, both design and decoration. You should consider updating this level to be more 2.0-ish or even 1.9-ish with 3D or even custom backgrounds. I liked the design overall, but on some parts it was way too bright, like near the end. However, most of the time, the background match up, so that's a plus. Also, I'll have to mark you down because this design is very outdated. I may seem a bit harsh, but I usually judge levels based on other 1.9/2.0 levels. 3/10
Decoration: The decoration is lacking. There's lasers, arrows, circles, and decoration from 1.0, and that's it. If you want to update this, then you should look at 2.0 maps with lots of decoration. I'm not saying that you should just copy it. I'm saying that looking at maps will give you an idea on what decorations to use. Examples of decorations would be dragons or sunbeams. Overall, the decoration is fine for previous Geometry Dash updates, but right now, this is probably not going to be even star rated. Another thing I would recommend is watching speedbuilds or tutorials on Youtube. 2/10.
Gameplay: The gameplay is pretty good. It stayed consistent throughout the level, and it didn't look like it had any bugs. It also looked fun. One thing I learned on this forums is that normally, most new creators have better gameplay than famous creators. However, there was some copy-and-paste issues that might downgrade this, so you got marked half a point because of this. Just watch out for this! Good job on the gameplay. 9.5/10.
Music Sync: The music sync was good, but there was one part that wasn't completely synced. Watching the video, from 0:29 to 0:30, the first jump was a little bit behind. I'm not sure if you intended this, but I prefer the first jump to be when the music "drops". Other than that, the music sync was fine. 9/10.
Good/Bad things: The gameplay and the style was very similar to Base After Base (obviously), and some parts seemed too unoriginal because of this similarity. -1 off of final score (out of 10)
Overall, this map needs some fixing, especially the design and decoration. This map would be much better if both were updated. I liked the gameplay a lot, but if you want to make a good map that has stars, you should consider changing both.
[(3/10+2/10+9.5/10+9/10)/4]-1=4.875/10
=Needs Improvement