Both of them are indeed Chagoi's.
When judging a Chagoi, the net pattern are the most important thing to look at. It should be even and unblemished, with no black or different colour marks on it. The colour should be the same all over the body.
The Chagoi's have a fairly dull colour, and therefore it should not have demerits.
Your net pattern is not very good, and there are blemishes, which makes it low quality Chagoi's.
The red in the fins is probably only due to the stress, but still an indication of lower quality.
The more brownish (Chocolate) colour as apposed to the mustard colour is preferred.
These Chagoi's appear to be underfed. Chagoi's are the pigs of koi and will normally eat much more than the other varieties, and therefore they grow fast and large, and often fat. These Chagoi's are very skinny.
They are extremely tame and friendly and normally do not stress as quickly as other varieties. This makes them quite popular and the "dull colour" often show off the more brighter colours of your other fish.
The fact that your Chagoi's have split fins is a demerit, although you can rectify it with good nutrition, good quality water and patience.
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