The later half reminded of Perfect Dark, which has a similar theme.
You are quite good at creating atmosphere and spacial imagery. You could easily find yourself a career in film soundtracking in the future. This was perfection. Keep up the work.
Slow starting, and kind of repettitive, but still gave me a pretty creepy visual in my head.. I guess that's what you were going for, so congrats!
Please contact me if you would like to use this in a project. We can discuss the details.