There were a couple of your full shows uploaded recently on YouTube. The show at the Chickie Wah Wah has better sound, but I think your bass player's vocal mic was turned off. Your band had some powerful energy at times. Presentation was kind of disjointed, though: you should work on moving one song into the next. Get a better flow, and don't let the energy fizzle out. Perhaps in the future you could employ your own sound guy.
I dunno if a singer like Aubrey would join you. I think people go to your shows to look at Grace Bowers, so it fits that any singer you have does mostly a lot of dancing. I want you to make great music. Yes the music is good, and you are beautiful. But be great. If Aubrey did join you, it would help push your band over the top.
Ladies and gentlemen, presenting my girl Grace Bowers live at the Chickie Wah Wah!