What do you mean registration?

Thank you for the honesty, someday i hope to have some of my shots in a book and other ideas for profit, that's why i was asking. Will be far in the future when i can actually learn how to edit them, lol.

Hi my name is Jillian and I'm an old print now new dslr, photographer. I upload all my pictures with wifi, on my iPad and edit with the photo app that comes pre-installed on iPads. Ok so not much editing goes on. Truth be told I'm kinda afraid to even open that door. Now to my question, how do i best protect my photos, on the off chance that anyone did want to copy or use one?

Attached are some samples of my photos, any comments suggestions and critics are very welcome.

Thanks,
Jillian

Stephen King re-enactment JFK

(Download)

Nudibranchs Phillipines

(Download)

First attempt at star trails, Finger rock Bullhead City AZ

(Download)

Reflection in a water ball,

(Download)