Wow, those are some STUNNING photos! You got some really clear ones. Can I ask what settings you used? My camera isn't a DSLR, but I know a fair bit about how to adjust settings for a good shot, so long as I know what the settings are.
If you don't know for certain, you can always check the EXIF data. This site can do just that.
If you don't know for certain, you can always check the EXIF data. This site can do just that.