My two cents.
Your's is not bad. I think his has some problems. First thing I notice, or not notice, I cant read "universe", cant read web address (way too small and compressed). Also, his is very dark. Yours is clean, easy to read, can be used in color or black and white. And yours can be easily manipulated to fill different spaces. Both have the design, which is, I guess, supposed to be a "S" which to a person on the street might be hard to read. I see what your going for, but I dont think you are there yet. Keep working on it.
I like yours much better.