Broken Tablet - Hour speed painting with a mouse

EDIT: This piece has far greater reception than I thought it would or deserves ...but because of this I will do a finished version when I get my new tablet

My Cintiq broke today, but in the professional world deadlines cannot be missed so this is good practice. This is my attempt to do a 1 hour speed paint city concept with only a 2 button mouse and Photoshop.

I will hopefully get new tablet this week.