Thanks for the comments.
The dot on the first one is actually a star, not the moon.
Now that you mention it I can see how the diagonal view ruins the second pic.
The ray of light on the last one is the spotlights that's lighting up the falls with those colors you see.
I didn't want to make the pictures too big because I'm using dialup and it'll take a long time to upload, but I guess it's better to spend more time to upload bigger, better pictures then to have ones that are too small.
Thanks again for your comments, I will take them into consideration and try my best to make my next submission a good one.