It took me a little time to see the kitty but when I did I thought beautiful. The whole thing.Oh My, WOW! That stained glass is awesome! And the black cat makes such a striking contract that both stand out quite distinctly.
I don't think I could have done the window nearly as beautifully. Did you see it in your mind first? Or think about which color should go where? I wouldn't know where to begin, to have the result look so realistic.