Wow, what a great eye!   Well, here's what I found when I worked with these a bit.
The one object you mentioned appears to be a leaf.   A dead leaf at a that, notice the brown color.
It could also be a leaf moth (seen below) but I doubt it, I think its a real leaf, dead in nature.
The other object (The green glowing one)...
Well I went round and round about this one.   When I did a luminance curve on it and brought out the detail it almost started to look like a green leaf.   But that really doesn't fit, I doubt you would see a green leaf there.   And the reason for its blurry appearance is because it was out of focus.   The camera is focusing on the tree and so it has a fairly distant focal length.   The green object is much more in the forefront so its blurry.
BUT when I examined the picture as a whole, I noticed that the upper right corner was very very bright.  Almost glaring in appearance.   I suspect the Sun or partially covered Sun was at that location.  If that is the case, its much more likely that what you're seeing is a lens flare.   It has all the classic characteristics of one.