This series is ok, for a first attempt. The story is decent and most of the action is good. The animation style isn't 100% to my liking but that's subjective. The sound also isn't great, and the dialogue is cringe worthy in large parts. It seems the angels of death have a very limited vocabulary! I am death/vengeance and repeat. A shame.
I also have to say the look of the Blood Angels themselves is completely inconsistent with how they are described in any and all Warhammer lore. They are meant to look angelic. Fair enough, some of them should be scarred etc, but angelic and scarred.
Overall, it's not bad, but it's not great.