Lion and Unicorn. Vector. Royal opera house.

I very like old logos. One of them is Royal opera house coat of arms. I like it vintage style, lines, shadows, like and dark elements which make a volume of figure.  on  So, i tried to coping this style to understand: how it work?

Here you can see and dowload my vector variant of lion and unicorn.

Download Royal opera house lion and unicorn vector yadi.sk

And here you can read history about logo upgrade and see interesting photo of it: underconsideration.com