Here is a collection of images you can use for this course.
Also, I've included the image I'm using as an option but I would recommend picking something different. This will keep you from becoming influenced by my decisions and give me a better idea of how skilled you are with the various topics to be covered in the lessons.
To save image you can right click on most devices and choose save. Alternatively, you can click and drag to your desktop if you are on a desktop computer.
If you have issues with saving image, or choosing one get in touch at email@example.com