Okay, I've narrowed down the first lot, chosen my favorites, and added a few more. I'm sure you're beginning to realize that I'm not good at making decisions... Please feel free to comment or not; you're probably getting as tired of this as I am!
1After all this trouble, I still like the one I'm using now. I think it's strong graphically, but don't know if it really says, "Spiritual Art Inspired by Nature", which will be the tag line for my sites.
2This is also a favorite, but I had forgotten to leave room for the corners to be cut off, as they will be on Pinterest, so I rearranged the type. I also changed the type face, but may need to go with a sans-serif font for the sake of readability.
3This is from one of my favorite pieces, but I'm not sure if it's too visually confusing. I also am afraid the font may be hard to read when re-sized to fit the various sites' profiles.
4This one is the same as the one above it, but with a different font. So I have made progress, in that there are three basic designs, which could be tweaked in one way or another.
Again, thanks for the help, dear friends! I hope you're enjoying your weekend!