One thing I still keep in mind to this day while painting is something I heard once, maybe here, and that is: \"When you think you\'ve highlighted enough, add two more layers of highlights and you\'ll be right.\"
I still use that as my mantra when judging my own pieces by eye and I think that saying would apply here as well.
You could really bring up some of those details and edges on the areas you are happy with such as the gloves and hood. Even if you\'re going for a muted scheme, always keep in mind what scale you\'re painting at and that the viewer\'s eye needs help distinguishing all of those tiny details.
Over-exaggerating edges, folds and creases, on leather, clothing, skin and just about anything at this scale goes a long way to making your mini\'s *pop* as it were.
For this red leather such as you\'ve used on the gloves and hood, keep in mind that you can always approach highlighting such things with a fleshtone as your highlight color. Leather after all is simply flesh. To give a convincing effect reach for your normal fleshtones and don\'t be shy when it comes to enhancing your details and such.