I'm a big fan of a more judicious use of brevity. I've always had a bad tendency to glaze over when confronted with giant walls of text in both descs and poses, so I appreciate when someone is able to edit themselves gracefully.
For example, it's perfectly acceptable to me to write, 'Jane's expression turns regretful as Robert voices his opinion, and she looks down at her hands, contemplating the way the light plays off of the gold and diamond rings on her fingers. With a quiet sigh she taps her manicured nails against the tabletop, a nervous gesture, then focuses her brown eyes upon Robert again, her gaze steely. "How /dare/ they bring the child into this?" She asks the attorney, her voice cracking. Clearly there's a degree of protection she feels for the little girl, regardless of how it undercuts her carefully cultivated cool demeanor.'
I prefer poses be about 4-5 sentences, unless it's rapid-fire conversation. I like description to a degree - it's okay to say, for example, Elizabeth wears a series of gold and diamond rings on her fingers', but annoying as fuck (to me) to read a very specific detailing of the cut and clarity and provenance of each piece of jewelry, when it's not something that would be immediately noticeable upon first perusal of the character desc. It's rarely something that is of much import to a scene, and, well, if they're all Treasures or Wonders or enchanted artifacts, then that's something that you can throw into a +view. But I am digressing.
I like to see poses that: have an idea of the time and place/space in which they are occurring; show a behavioral quirk of the character, be it a nervous gesture or a tic or reflection of a flaw; don't delve into thought-posing or meta-posing overmuch (but I still buy Telepathy to react to those anyway); resolutely refuse to veer into second person; and provide actual meat to react to - unless, again, it is rapid-fire conversation. I hate feeling like the setting and space and anything else that I have striven to provide for others is completely fucking ignored by their need to showboat and be the center of attention, rather than actually collaborative.