I dont think its a question of you providing too less images, I didnt wanted to suggest that. For you its more the question of presenting well what you have, not to shoot images to suit the presentation. I think its a general thing, the maps default navigation works only decent with the globe or at least a region fully covered with imagery. So the maps interface is about exploration, you on the other hand want to provide an intuitive geographical context. (Just my guess.) This would mean the navigating needs to be more finetuned to your images. I dont know what the interface permits, but if I where to use it, I would try to switch off this multiple zooming in (12 clicks to see the two Brooklyn bridge images, thats just not gonna work.) So maybe restrict it to max two levels and ensure that the recipient has always something meaningful under its mouse.
Christian
//Edit: In short, minimize the number of clicks to get to your actual images to the absolute minimum, preferably not more than 2. 4 is already too much.