Quoting Nathanael Kuipers
For a first try, it's pretty good! The more you build, the better your models will get. This set in particular is great for alternatives; I have created over 20 different ones.
I saw them all before I built mine and you did awesome job. I can say, that I was inspired by you. Thanks.
Very good for a first MOC! I like the spoiler technique. I'd suggest to try to coordinate the colors a bit more though. After finishing, it is best to move a few pieces around to try to get the colors to look better. You should add this to the group "Alternate Designs of a Creator". It would make a great addition.