Thanks! I didn't know anything at all about markup until I came to Steemit. I will make sure I center my images from now on! Does it help to say somewhere at the start of the post, or in the title, that all the images are my own original content? I get so frustrated here with all the stock photos, especially when I hold my view about a photo in check until I get to the end of a post and find it is, as I suspected, from somewhere else.