Thought I'd give you some feedback on where you're going wrong. So...
First off, the whole thing seems to be too short even for a demo/sample. From what I heard your samples are weak and generic. Sounds like samples from the FL Studio bank and honestly feels like no effort went into it at all.
Don't be afraid to add more patterns. I think I heard around 8 patterns total... I could be wrong. Being that it's Trance you should start working on build ups and break downs. Build ups are typically used for DJ's to help blend in tracks without rushing the process so it seems natural. Some people hate intros but I love them. It adds a lot of anticipation through out the song and gives it more energy. Start practicing on your break downs, too. Make it epic when it happens and use spacey pads to give it atmosphere. Use your imagination.
I didn't hear a bassline either.. Don't forget bass is another important musical element and needs to be used.
Anyways, this review was kind of brief because I am short on time, but hope this helps.
Please contact me if you would like to use this in a project. We can discuss the details.