hello everyone. i will be glad if you can spend few sec for me and my boy

i have adopt him just 15 days ago. he is 3.5 month old,as he is without doccuments[no parential side documents], i would just like to ask, is he a pure yorky( breed), and dose he will get goldan taning on his face?i m littal worried coz it seems gray to me......but one thing he is so qute and i love him alot,after he came,
xxx my life became more livealy and joyfull.