I'd say this is rather far from Pink Floyd. Yes, the guitar and the keyboard, but that is the only similarity. It would remind me more of Yngwie Malmsteen, if you know what I mean.
The composition is nearly classical, good dynamics, plus sudden finale. Sounds like an anthem. Although I would love to add some vocals (which I might try and do as the license allows it), the piece does not lack anything. There are several changes of rhythm pattern and modality, that keep it from becoming overly monotonous over its length(alas, modern audiences are not likely to listen to pieces over 10 minutes long - just think of "Child in Time" or "July Morning").
Though the development of the piece is somewhat predictable, it is a good one, indeed.
(Perdone, yo no hablo espanol!)