This list feels rushed to me, the list feels very unpersonal and from a tactical point of view it's pretty bad
are you using models from a SM or BA army?
The Daemon Prince with wings is a good start but scrap the Khorne mark as this only gains him an extra attack and stops him using any psy powers. Slaanesh with lash of submission is a good and popular choice.
I totally agree with Moonschwine this list needs some CC wargear and specialized units, but if your set on the standerd CSM units you really need to have at least 8 - 10 in a squad with the choas glory, a flamer/melta, a champ, power weapon and in a rhino.
Any units not in transports should be ranged such as havocs and chosen, as they don't need to run into CC whilst getting hammered by your enemies ranged weapons. I personally like 5 man nosie marines with a blastmaster.
evilturtle also is right in saying 3 land raiders is pointless. A landraider should really be carring some some better units, 9 berzerkers/plauge marines with a choas sorcerer is good for mixing it up or terminators with a heavy flamer and some lighting claws and maybe a chainfist for chewing up tanks and rapeing higher armour vechiles.
All in all the list leaves great room for, it also come across as rather dull..
But on a high note: SKULLS FOR THE SKULL THRONE!