hi, I immediately notice that the follow along has better unified shapes, of course this makes sense, but try to keep that in mind. your own shadow shapes for example feel like randomly placed 'shapes' somewhere which breaks the illusion of the whole piece. I noticed that you put outlines around every shape, try to create every shape just by flat tones (for this project atleast) this is much better in the follow along, but there are still outlines visible around the higlight shapes. finally, the shadow shape (reflected light) is way too bright, always remember that it is still in the shadow family. It is too close in value to the darkest halftone (light family). The upper reflected light (shadow) is darker than the bottom one, but I would say make them both even darker than that. Remember: The lightest dark is darker than the darkest light! I hope this helps :)