Welcome to a nice floral-y layout. The layout and the code are both totally free use - use it, edit it, use it as a template, go crazy! Please just ensure the image credits at the bottom stay there, or if you pick a different background image, make sure it is credited properly.
There are no header options for this layout right now. That may come later when I get more experience. (I tried to make headers for my own kennel layout. I did something wrong and basically deleted all but about three lines of code, after having already finished my about page blurb, my links, and so on. :) Pro tip: don't delete all but three lines of code after designing your About Me page.)
If you're new to layouts and code, I recommend checking out this Help article about basic HTML codes. This topic has also been helpful to me when adding pictures (I've used it for coding my own layout). This topic also has a guide for creating your own basic layout if you'd like to try your hand at that. Sadly, there is not a general CSS guide anymore; the topic was deleted.
There are also numerous off-site resources you can use. Personally, I used Code.org to learn some coding and to practice web designs. W3Schools.com was also my best friend when making this layout. I definitely recommend checking them out.

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