I think that i will keep using copyright just because I have had one of my pictures stolen before and got no credit for it. I think that both the logo and text watermark are cool but I like the text one better, even though the logo is very creative I like more simple things. I also depends on the picture that I am putting it on. if it is a black and white picture, I would use the text logo, but of it is colorful and a close up picture I will probably the logo.