I'm a microstock administrator and I've been hired to help write and modify acceptance policies for several of the larger agencies. I can tell you right away that to get in SS you need to show some diversity. You have 3 images here .. Nature, Nature and Nature. Nature is not a huge seller to begin with. You need to show some diversity .. one portrait, one concept, one product shot, one food shot, one architecture, and so on. People shots are huge sellers. However, to get in the door with SS you still don't want to apply with all people shots. They love diversity.
Now once you get in .. then you can upload batches of similar topics as you shoot them .. not side by side similar compositions all at once though. You also want to try to avoid shots that anyone can take. Like the leaves. Will people need to buy a shot like this. Yeah actually they will. The problem is everyone and their brothers cousin has been walking in the backyard, aimed the camera at the ground and fired off a shot. Those images get submitted by the hundreds every day. Last week I wrote a quick article that touches on the same concept relating to sky and cloudscapes ...
the Sky is not the Limit .. you might want to give it a quick read. The same principles apply.
Once you got your foot in the door, it never hurts to throw in an every day shot of something simple though. I have a stupid shot of boring plain dirt that I submitted as a little inside joke a couple years ago .. I've made hundreds off of it ... and I laugh every time it sells.
