I said follow my long fingers. The possessed bits are very awesome looking pieces. I don't follow Bolter & Chainsword as much as I used to so I don't know if a lot of chaos players use them for normal marines or not.
I thought this made for an interesting pose. And I do like this head. A lot times your conversions do not need to be completely over the top. Very subtle ones often work, and give you that dynamic that you are looking for.