it's beautiful! first, what kind of sewing machine are you using? you can do FMQ on just about any machine but it makes a difference if we know a few things:
can you drop the feed dogs?
does it have auto adjusting tension or just a manual dial?
do you have a darning foot, the kind that's on a spring and hops?
You can make yourself some muslin quilt "sandwiches" about 12 x 12 to practice on. If you look at the red arrow, the one on the right is where I started and the one on the left is where I ended. Really it's just one huge continuous line that does not cross itself. It takes some time to figure out how your machine wants to do FMQ. Keep a notebook next to you to make notes on what tension, which needle, stuff like that. Loop-de-loops are fun too and soon you'll be making leaves and feathers and hearts and whatever you want :) it really is like doodling.