Practice, Practice, Practice

Happy New Year everyone! One of my resolutions this year is to improve my work and be a lot more active with that work. This thread is gonna be a sketchbook in a way. Each month I plan to focus on a different aspect of my work flow. This month will be focusing on my hard surface modeling. With each week being a certain type of prop and then changing to new one the next week. I am also imposing a 2hr time limit on myself for each day as this is meant to be practice.

This weeks prop is going to be doors.
Here is the reference for the first door.