you can try adding a soft counter melody and maybe a smoother bassline. and if you're going for a deadmau5-type style, you should try to make your drums/percussion hit with confidence (harder). most of what makes deadmau5 so great is his usesage of counter melodies and chord progressions. plus his really unique sounds. you could also run your synths through some filters and add some crescendos and decrescendos to make it more dynamic. this is just my 2 cents, take it with several grains of salt just do what makes you feel chill and relaxed.
Please contact me if you would like to use this in a project. We can discuss the details.