Reply to Sample Mix

Hey guys, here is a mix I made recently. I just started attempting to make mixes so I am always looking for new techniques and advice. Any constructive criticism welcomed.

http://soundcloud.com/ryanvuthatouch/random-mix

Tracklist:
Calling - Alesso/Sebastian Ingrosso
Louder than words- Afrojack
Save the World Acapella- Swedish House Mafia
Save the World (Zedd Remix)- Swedish House Mafia
Move for first aid (Kaskade Mashup)- Kaskade/Deadmau5
White noise red meat- Dada Life
Without you (R3hab XS remix)- David Guetta
Koko Prutataa (Dada Life Remix)- Sander van Doorn/r3hab/afrojack
Awooga - Calvin Harris
Flashback Acapella - Calvin Harris
Pressure- Alesso