It will be great to hear the SVS team's take on all these questions - so many good ones! It's tempting to put myself forward for critique but I think I need a bit more time for my art to evolve, before I'm serious about being represented, and I already have agent feedback to work through. But as @lmrush said, it's great that you are here to help us like this, and long-term I think an agent might be a very good thing, so I'll be interested to see what comes out of this topic.
@QuietYell Thanks for posting that link - really insightful!