It's hard to say anything else other than a +1 to the rest. I think this is the strongest yet compilation from phototropic. Some tracks I'd like to point out that were really good were Hypnotic Signal's atmospheric Cosmic Sphere, Blackstarrfinale's debut track Cassiopeia with it's crazy spiraling melodies, and Alieanapia's Inner Poison with it's dark forest atmosphere. Also one of the strongest Amithaba's tracks is on this comp.
But Sky Technology's track is the best track on this comp for sure. The sounds, the melodies, the style it's really fresh from what I've heard lately. The liquidy/bubbly style really lifts it up to a higher level. It's quite a fascinating execution and really hanging in the balance of being a cheesecake or a superb track, which from the latter it is.
The rest were ok-good aswell but those I wanted to point out. Surprises from newcomers is always a pleasure.
Edit: I'm really loving the Arronax track too, very spacey theme.