Currently viewing this on a mobile screen doesn't do it justice but I can magnify the details. Needless to say, your talent seems natural. The shading and angle at first glance looked awkward(I blame my phone) until I got a closer look, sure enough, this is a good action pose. Do you use references stock for your work?
It is because of the nature of flintlock pistols. You carry them already loaded, shoot them and throw them away. It takes to much time to reload them in a combat situation. Some of them even had reinforced grips to use them as a club after you shot them. This is why she most probably has three of them because this is how they were used.