I agree with RobS, that before and after photos and videos are good for perspective customers. What you have makes me want to run out and get a mulcher. :thumbsup:
Take establishment shots of land to be cleared, then after shots. (Maybe a time lapse showing a hillside getting cleared from an adjoining field?)
Potential customers like to see equipment work, so an action camera aimed right on what is getting mulched with a broader shot showing what is getting done in the context of the landscaping job is good with a couple of a quick cuts.
On the other hand I now firsthand that it is a monumental PTA to video when working, and so well done!
I've been thinking about getting a real pro-level remote microphone so that when I'm shooting shots off of a tripod and working, I can provide commentary as I go. You could do the same if you get into and depreciate or write off the cost of the equipment.