I reckon we definitely should! Show the disbelievers and not-used-to-seeing-epic-model-ers you can do cool things with them. In a similar but different way to Groover's articles it could possibly inspire some to maybe have a go themselves.
Some of us already have some on
CoolMiniorNot but the more the merrier. I've had models on there from years back and plan to upload more once I get back into painting again. I'll probably go back and take down and re-upload newer photos of some of my old models too; now that I've actually read some photography articles, got a lamp, now how to use levels command fix a too dark photo, etc.
Links to a few of mine:
Guard Vulture,
Looted Ork Rhino,
Converted Raven Guard Terminators,
Solar Guard Land Raider.
Warning mind: the votes and comments can be
harsh on there sometimes! (you're sharing website with Golden Demon winning models and the best painters in the world, though there's a wide range and the average is not that high) And unless it's made obvious with something in the photo to scale it, the casual viewer/voter might not realise how small they are. My suggestion would be to have something in the photo(s) to scale it e.g. a coin (though other parts of the world may not know how big that coin it would be) or a, preferably unpainted, familiar other 28mm model e.g. a plastic W40k marine.
The upload needs to be one file, but it can either be one straight photo or a number of photos/angles stiched together. There's a maximum width limit (600pixels), beyond which things get compressed down to anyway, but photos can be as long as you like (though not more than 100kb in all). Hence if you've got a great camera / photo, and particularly if you want to photo something wide or a unit, then it might be better to include a second photo
below the first with the scaling thing in, as opposed to having the scaling thing next to them, which would lower the width/resolution for the important bit.
We could possibly also briefly promote / enthuse about EpicA / Tac Com in the description too, though best just brief, and mostly have the writing talk about the model. I used to have a link to the Specialist Games site on my epic uploads, though those no longer work and I should change them.
Edited to add: their forums are also excellent for painting tips, and their painting and photography articles are great.