I have been trying to improve my writing skills and I just finished a tutorial for Making and Moving Selectable Shapes on an HTML5 Canvas. I'm not necessarily

I have been trying to improve my writing skills and I just finished a tutorial for Making and Moving Selectable Shapes on an HTML5 Canvas. I'm not necessarily looking for minute things such as grammatical errors, though I would appreciate them if you found them. More so I'm looking for feedback on the piece as a whole. Did I give enough of an explanation? Was it clear? Did it feel like I jumped around, or was it logical to follow, section-by-section? Is all the code's purpose clear to you? Should I have included more or fewer code snippets in the article?