help with colour genetics of these ladies

[AusHen]

Hi all. posting on behalf of my son. He has these two Aruacana pullets (Australian standard) and is wondering what colour they are as he's currently making me search for a rooster to produce more chicks like these (apparently Lavenders and black are "boring") I keep telling him mixed colours since all I know is they came from a mixed colour pen but that's not good enough for him.. So here I am asking if anyone can please help me out.

 

[sylviethecochin]

They're both partridge. The darker one has some sort of pheomelanin enhancer, but I don't know enough about poultry genetics to tell you which one. @nicalandia usually does know.

 

[nicalandia]

The dark one is puré Partridge without pattern gene, melanized by melanotic(heterozygous). The other gene appears to be wildtype and heterozygous for columbian. Cross phenotypes boy something one that is intentionally bred for no any known breeds