Denim Logo

I have clothing line called "Pretty Soul" and the logo is mirrored so that when women are in the mirror getting "pretty" they remember their soul. I am branching into denim. I am currently ok with the logo, however am open to updating it, as well as having a logo now for the back pockets of denim (like Levi's, or guess and other famous jeans) as well as the leather patch at the top of the jeans that goes on the back. A lot of the marketing revolves around "P.S.... Don't forget your Soul" or simply "PS" however, I am not opposed to having the logo be around "soul" and have the back pockets reflect something like that. To get an idea of what I mean regarding denim logos on back pockets, take a look at Levi's, wranglers, guess, true religion, calvin klien, guess, etc...

I want a minimal design and I don't want it too frilly or girly... I would like something clean, and striking and some how represents "soul" or "pretty soul"

Below is the current logo for the clothing line