This is well-written and structured. The sounds and samples you chose feel like they belong, which is fantastic.
My initial criticisms are: could use more reverb, the intro sound is a bit harsh on the ears, and the melody could be much more complex. It's almost too simple. The instruments don't blend too well together yet, as far as the mix goes. You could definitely dive into the details here and come out with a fantastic finished project. I mean all of this with the best intentions.