Main issue for me is lack of units - slightly too many characters for my liking and no real tangible threat at 2,000pts

Some of the named heros hit hard but can go down easily enough, and your rank & file can dish out the attacks but lack killing power (lack of rend kills Khorne)

You could go MSU for the core battle line units and swap out some of the Blood Warriors for harder hitting units like more skill reapers or dameons

Lack of speed is brutal in this list too - and Khorne has some fast moving elements in the book