B&B? Black and Black? Haha
The stock comes in colour.
And Kadaj, depth and space is a key factor to consider when creating a good signature. You need to work on sharpening the foreground, and blur objects as they recede further into the distance.
Also, before you begin to explore B&W signatures, you should focus more on colour... as Black and White signatures are quite a bit more complex than most people realize.