One of the best ways to learn is by seeing as many Koi as you can and watching how they develop. I thought it might be fun to have a thread with nothing but "before and after" pics. Look at each picture and post any observations you may have, good or bad. Not all of the Koi I post will turn out in a good way so have at it. Talk about changes you think might happen with skin, color and conformation. Is the Beni strong or weak, are there issues with the body and is the skin quality good or bad? Try to leave pattern out of it for the time being.
The first one is a 9" Tosai Sanke.