16 is fine, search pre-dents for accepted students with <=16 QR.
I emailed the schools I planned on applying to regarding my 14 in QR (other scores were similar to yours, 21TS 20AA)., The consensus was that QR is the least important section, and for schools with "cut-offs", it is the only score they allow to below the bar. I've already received 2 interviews.
same overall scores as you. except my QR was a 15 🙁 so pissed.. it really killed my score.
a lot of SDNers say that QR doesn't matter that much.. but i'm still worried because most schools have a cutoff of 17. i don't know if that applies to QR too.