The nature of being a submissive is to be the one who is enjoyed by our Dominant; whether that enjoyment be gleaned from what we do, or say, or how we look and present ourselves. I would suspect most subs post thier pics to please the Doms they have currently or the ones they hope to attract. We aim to please by our natures. On the other hand, the Doms are there to enjoy us. Who are they really trying to impress?