First let me say welcome to our chat board. As you can tell there are many theories and
opinions as to the development of these kohaku.
In helping to select by pattern, Imagine each lil koi is a balloon. Your going to inflate them and watch them grow before your eyes. Some of the smaller patterns that look so
"right " on them now will begin to "ride up" and become less dominating as they grow . Take a good look at #4. See how heavy this pattern rides on this koi. It will stick with the koi as it grows and improve. The very flowery pattern of #3 is the other end of the learning curve. It is a Very busy pattern, it will not stay with the koi as it grows. As your learning, the power of your taste should play a part. Do you like the formal #1. technically pretty smart looking.
Or would the judges remember #2 because it pattern is quite unique. Which one do you prefer. I think it's important not to be so swayed by other's opinion on patterns. Pick what you like. As you raise various ones you will learn about the things that develop into quality like skin, irregular sashi etc. I hope you'll remember the lesson of a heavy pattern on a little koi ( the balloon lesson) it will serve you well as you advance.