Here's an example that happened to me this week. In my illustrations for the book 'I Am Coyote", one of the paintings shows a young coyote leaving her parents to move out on her own. She has moved away from them, across a stream and is looking back at them.
Since the painting is 22 x 30" and it is going to be greatly reduced for the book, I felt I couldn't make her too small, as she would become too indistinct. Here is the result of that decision:
You can see that her head as well as the body where it joins the head are both too large - what to do? There was only one solution. Lift out the head and some of the body and repaint. Scary? YES!! I have many hours invested in this painting already. But, no choice.
After I let the paper dry completely, I redrew the head and chest and began again. Here's the result:
My real point in this post is that when something isn't right, there's only one choice, and that is take whatever risks are necessary in order to make it right. And you would never know that I lifted all of that pigment and re-painted. This painting is on 300# Arches hot press paper. I have found it to be very forgiving and the love the texture I can create on it. If you haven't tried it, you may find that you enjoy it as well. I choose my paper that I think will be best for my subject matter.