Glad to know you enjoyed the game, I'm aiming to release a new update in February.
Thanks for sharing your suggestions, I'll adress them one by one:
-I plan to add brothels for your slaves to make you money in the next updates
-In the future, I plan to expand a lot the movement and entourage system, including the ability to buy new cars and upgrades. First though I need to focus on the core mechanics and expanding the character system. But movement already got a lot better and faster in V0.0.3, since you can move more than one hex with a click
-I'm really keen on the idea of having the option to receive money instead of a slave, it never occurred to me before. I'll add it in one of the next updates
-Yeah, having a customizable player character is high on my priority list