I've looked at it and if there's one advice I can give you. Don't use bloodcrushers of Khorne. They look really good but they suck balls in the 6th edition codex. you would want to change them with flesh hounds of khorne since they are really good and the scout move is awesome. The rest of the list doesn't look too bad. Although I would change the two squads of bloodletters, I would switch them around by taking 2 squads of pink horrors. And only take one squad of bloodletters since they generally aren't good unless you take them in squads of 20

. And for the rest. You might want to get some heavy support going like a daemon prince of Tzeentch.Trust me, take just one daemon prince of tzeentch and it will be worth the points big time
I hope this helped you a bit