The first pic- there's light coming form the side, making it difficult to rule out dust or insects- but the orb at the bottom right is interesting, I don't know what would have caused that, it doesn't look, to me, to be close enough to the light source to be that bright.
The second pic- It looks kind of like the moon.
![[Laughing]](graemlins/lol.gif)
What were you taking pictures of? I like the color of it. I like this one the best too.
The third- this looks like reflection to me as well.
The fourth-It looks like it would be pretty hard to rule out dust. Where were your at?