A posture from The Military Discipline wherein is Martially Showne the Order for Drilling the Musket and Pike, published by Thomas Jenner, London 1642. This copy of the book is adorned with nineteen engraved plates showing musketeers and pikemen in various drill postures and modes of dress. This musketeer is clad in montero cap, a doublet with slashed sleeves, plain falling band (or perhaps shirt collar), tapered breeches with shoes and hose folded down over what are presumably a pair of garters. He’s sporting some nice ribbon bows on his breeches and shoes too. This is very much the ‘Trained Band’ look, for the weekend soldier not really something you’d see on the field of battle.
Here’s a closer version. Notice the match he is holding between his fingers is alight, ready to fire his musket.