One thing I'm bothered... the Axis seems not match, the hands are directed like she is pointing left, the arrow goes in the upper corner, and her face is toward viewer... Anyway i like the technique and color palette
I realy wanted her to look at the viewer and if I had placed the arrow at the center the composition would be ruined ...the other option would be to not putting an arrow at all but then it will be just a fancy pose without purpose.So I decided the arrow to go at some target at her left and her facing the viewer like he's next. Nice observation though. Cheers!