Try a different paintstyle: Simply a primer + a wash and/or highlight. Or use contrast paint.
That would give you “monochromatic” figures, but a proper basing really helps, and you could still paint shields in a different colour.
Of course, such a drastic change in visual style isn’t for everybody, but I feel that miniature wargaming is too stuck in the “model railroading” look.
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Wargaming Mechanics Blog: http://wargaming-mechanics.blogspot.com/