I started this last year (as you can probably tell by the '16 on my signature) but never finished it
I was gonna use it to practice shading but obviously never did and I figured I could just post it now
I used this as a reference http://thesportster.imgix.net/wp-content/uploads/2016/05/2d290d30-73fe-11e4-a8eb-29f208f7fc0a_459273792.jpg?auto=format&q=90&lossless=1&w=864&h=609&fit=crop
I like to think that Homura probably does some modeling like this for like athletic stuff