The intro to Colonia reminds me a lot of Pryda, same kind of bass/bassline. When it gets to the main part, it sounds really dark. The nice sounds you add in there just make it perfect to listen to at a club, afterhours.
Stairways sounds more EDM-ish, aimed for the mainstage. I could see Steve Angello dropping this in a festival/club set. It's just pure straight up energy, we need more tracks like this.
Definitely enjoyed your EP man, downloaded the tracks, will use them in my live sets!