A toss up between numbers one and three, numbers two has har to much sumi where the other two have the undeveloped sumi still to come out.
what size are they ?
Too much sumi when young leads to it fading in later life and as such is no good, I like the fact that in number one there is a streak waiting to come out.....I think it rather cool ...
We personally like the Ki Utsuri ( for those that dont know yellow and black), but as of yet Val hasnt found one thats just right for her .
Who's the Breeder , be aware that any koi from Japan should be heat ramped to check against the koi Herpes Virus as there have been problems since an earthquake shook the provence that koi most koi are bred in .
Heat ramping is the best way to put the koi under stress so that if the koi has KHV it will bring it on thus saving your other fish from coming down with it and seeing as KHV has an 80% mortality rate you dont want to make that mistake, it is also a notifiable Virus that you must infom the Authories about should your koi come down with it
To heat ramp you must rapidly over a number of days raise and lower the temperature of your Quarentine unit by quite a few degrees up to around about 24c I'm sorry to say this is the only way to do things .
I recently had a dear friend in South Africa suffer this, with the loss of all his koi., a collection I might add built up over many years.
He was heart broken.but has since started again after nuking everythng from the pond through to his nets in a powerful disinfectant .
KHV is a very real threat.
Recently a world famous breeder in Japans koi became infected a great loss of face , after ringing his agents around the globe to inform them of this he left his office and sadly shot himself in the head so very very sad ........
rgrds
Dave