Video in the Works

I’m in the early stages of developing a full-length art instruction video, and I would love to have your input. 

Please let me know in the poll at left what you’d most like to see in a Gurney art video. You can vote for more than one thing on the list.

And in the comments, please tell me in general what you like in art instruction videos (OK to mention favorites or share links to YouTube samples), and what are your pet peeves (without mentioning specific names). 

What features should the video have? Do you like or hate background music? What’s the ideal running time? What makes you watch a video multiple times? What’s the most you’d be willing to pay? Would you rather have a paid download or a DVD?
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Addendum, January23:

There were 753 votes in the poll "What should a Gurney art video include?"

Here are the results:

Case history of 1 or 2 paintings--240 (31%)

Dinosaurs / Creatures--158 (20%)

Research-- 257 (34%)

Thumbnailing--259 (34%)

Watercolor technique--268 (35%) 

Colored Pencil--124 (16%)

Oil technique--420 (55%)

Composition--429 (56%)

Making maquettes--238 (31%)

Lighting--377 (50%)

Photo reference--287 (38%)

Color / gamut mapping--312 (41%)

Brushes, paint, medium--286 (37%)

Time lapse--174 (23%)

Parakeet antics--171 (22%)

Oudoor plein air demo--251 (33%)