Ladies in Wild west

Have been working in the game industry for years and years I suddenly realized I haven't done any project that is completely owned by myself! In order to get out of my laziness, I decided to start it this year and I start with one of my favorite topic-- wild west. I would like to focus on the minority and females role during that romantic period of time and would like to reveal the life of the Chinese in America and the relationship they have with the westerners.
Decide to start with the character design (female parts) with a different artistic approach. Haven't been drawing line art for quite a while, my hands feel rusty :((
I also created a backstory for each character. My English is getting worse and worse, so please bare with me with any mistakes in the writing...