First 2000 point army list

Hey guys, just wanted to see if this 2000 point build would be any good on the tabletop. This is my first time:

Azrael:
10 hellblasters

Chaplain in terminator armor:
10 deathwing knights

Librarian in terminator armor:
10 deathwing terminators

Ravenwing command squad:
6 ravenwing black knights

2 redemptor dreads with plasma incinerator

Please let me know your thoughts! Lots of plasma, I love dreads. FOR THE LION!