Critique and Advice; the treadmill of adventuring.

The big thing to realize here is that redrawing is something of a trap.

What if, six months from now, you feel that your skills have improved and you can redo those panels even better? Do you do them again, or do you settle for what you can do now?

But there's no problem with redrawing in principle. There's also no problem, in principle, with leaving it as-is. The questions you want to ask are:
1) is redrawing worth my time?
2) is it important to me to leave a record of my progress as an artist over the course of this adventure, either for the sake of myself or for others?

These are ultimately personal questions, so I can't tell you "yes" or "no". I will say that I can't think of any panels I found unpleasant to look at in Great Haven, for whatever that's worth.