Mike this is so, so, so good, I love landscnechts and on this one,
It's a really strong face but beautifully rendered, delicate, spot on.
I've been looking at the sublety of your shading choices for a good ten minutes and come to the conclusion that I would have tried to paint the slashed yellow shoulder pieces to a higher contrast and overpainted them this is a great piece.
Knowing when to stop is a lesson I have learned from this one
Paul