I look at it this way, there are poses and props and clotthes that if one lights correct and poses just so , very little post needs done. most times those that thumb thier chest that there was no postwork, often desperatly need some to make the image look more beliveable. i look at post in the same way Little_Dragon thought "If hollywood does it, why can't I" and that seems oh so true. with all the items that are available many good quailty, the real artisit touch seems to come from how much care and effort the artist took to complete the the illusion of the image. those that do are well recived by thier peers and produse stunning work. those that toss in a few figures, whip in a canned pose or two , add a light set, hit render and post with no effort. it looks it. I'd say do some, or just a little. the applications available can only do so much. apply the effort, and make the image alive, think out the issusion and create it. and it will look better.