As a Trance artist myself, let me just say this piece was extremely well made. Everything fits well together, layers nicely, and has a nice groove throughout the piece.
Only 3 problems I have with this piece.
1: The beginning is too quiet for too long. Sure, trance is about atmosphere and rhythm, but you don't get much rhythm until a lead starts to emerge very quietly around 1:06. It's just too much for too long.
2: The breakdowns specifically at 3:48 and 5:25 are too sudden. This is where a gradual volume change or long sweep could come in handy, something to mask the tone change while still keeping the rhythm from not dropping off too much.
3: Personal preference, but the Song Name is just bad. "soothing" with a lowercase S, really? xD When making a song, I sometimes delay the release of it for a solid week trying to come up with a fitting name, as I find that a name is almost as important than the song itself. Just seems a bit lazy if you don't, that's all.
Otherwise, this sounds great! Keep at it. ^.^
- SlashDaUmbreon