Depends on the comic. There were no regular artists on these titles. It was a revolving door, but Ditko drew a bunch of them. As in, A LOT of these stories. Some are great, others are... OK. I'l try to post some in the future... they've rarely been reprinted.
And yeah, that last cover is like Shade and Two-Face combined. Awesomeness!
OH! IN regards to your scripts, the only other suggestion I have other than Deviantart is to post something on LiveJournal... feelers, I suppose. There are tons of cmic artists there that aren't on Deviantart (although there is a wide crossover). Either that, or Craigslist as a last result.