Painting mass troops with oils? Wow, you're a braver (and more patient) man than me Victor. Good on you! I really like the yellow coats with the blue facings - very sharp. If you ever wish to try doing flesh tones with acrylics I can recommend both the Vallejo and Foundry flesh 'systems'. Another quick cheat is to use a midtone flesh colour, apply a wash like the P3 Formula Flesh Wash (most paint ranges have something similar), retouch the raised areas with the same midtone colour and then for a final highlight, add a bit of white to the mix. Works a doodle for rank-and-file figures.
55 points for your climb up the roster. Well done!