Some concept sketches by reggieroberto of musketeers:
Spoiler
(http://i1180.photobucket.com/albums/x405/reggieroberto/musketeersketch2.png)
(http://i1180.photobucket.com/albums/x405/reggieroberto/musketeersketch1.png)
Hannel Wekker, as drawn by AnimeWolfGirl (http://animewolfgirl101.deviantart.com):
Spoiler
(http://th08.deviantart.net/fs70/PRE/i/2013/007/1/f/commission_3_by_animewolfgirl101-d5qrvau.png)
Kaia, as drawn by MultiYoungful (http://multiyoungful.deviantart.com/):
Spoiler
(http://fc09.deviantart.net/fs71/i/2013/131/c/b/kaia_by_multiyoungful-d64v269.jpg)
Charlotte Stanley, by Annie Reagan:
Spoiler
(http://i149.photobucket.com/albums/s76/JubalBarca/GSS/image_zps6715fd08.jpeg)