I DO NOT HAVE A PICTURE BOOK DUMMY. BUT THIS WILL GIVE YOU AN IDEA OF HOW I CONCEIVE THE ILLUSTRATIONS. THIS ILLUSTRATION COULD SERVE AS THE COVER OF THE BOOK (PLEASE IGNORE THE SUBTITLE).
Here's a link to my song (Mr. Train) that the picture book is based on. music.apple.com/us/artist/robert-the-guitar-guy/6320683
And here's another link to a sample of Mr. Train.