Best glamour for the head imo is the cobalt barbut with ash grey dye. That or the Pig head from the DQ event like the one I have equipped now

A small quibble with the design is the small metal brace by the elbow on the inside of the arm. It keeps clipping against the armor and its kind of annoying.

Also the cobalt vembraces go well with the hands. My character basically has what I think to be the ideal look pre high allagan/noct set.