Very much styled like comics.
The art is excellent and it seems to me that you've been either inspired by or come frome a comic artist's background.
The animation is slightly less professional, as the images sometimes remain static when moving, causing them to look slightly unnatural and the perspective is occasionally messed up (specially with the plank of wood that falls on the old guy's head).
The music is excellent at creating the mood of a B-movie and is well places, although it's maybe slightly too loud at times.
The plot seems intriguing, but there's just not enough explanation given as to what's going on for my liking.
After watching it through 2x, I still don't really understand much of it... maybe that's the point - that the questions remain to be answered - but I would like to know a bit more about the doctor or his motives so I could connect with him a bit more.
Overall it's a highly individualistic piece done in a style I don't often see. The story may not have been one of my favourites, but if I see another Dr. Shroud episode, I'll definitely watch it.
I'm now off to see some more of your work. :)