This model put a huge smile on my face. Very nice execution of clean shades and highlights.
I'm a big fan of simple, "easy to read" color schemes with two well matched base colors and one strong highlight color, and for IG they are totally in character, anyway. This model is a perfect example: your combination of green on the armor, light brown on the baggage and uniforms and a few flashy unit markings on white to draw the eye are elegant, but really impressive because they are done so cleanly.