No. You can't edit a poll once it's posted. No idea why the software wasn't written so you can.
And that was a "No, I don't have a mind's eye." Not the way you mean anyway. I remember things in kind of bland colors, but when I read, I can't envision anything well at all. In fact, the more descriptive the author is, the harder it is for me to envision it. Too much detail and my head tries to put every detail together like a puzzle. Too much detail and I always have trouble putting it together. I need minimal description. From that, I can envision just enough to contain what's happening, which is what really matters to me in a story.
This is probably why I can never remember colors correctly.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...