thank you, I'm really glad and honoured that you like it. Here, I wanted him resigned , accepting his patronus, even with a hint of tenderness. I think that is not easy for him to have this patronus, and this love - like a knight, fire in his heart burning it; but in the same time the doe helps him and he accepts it with this mixte of affection and stoicism. Well, you give me a great pleasure - you can see it!
Yes, for the colors, I'm sure that JKR has thought about it - I mean - the doe is actually silver. So good!