The play and note icons are perfect, the arrow is perfect also. The MoocPlayer button is nice as well. (Maybe a very bit less shadow)
The only thing is the "video training" and "create notes" box. It is hard to read and it coud be not so rounded. I don't know if it can work in this size but I mean something like here: http://cdn2.bigcommerce.com/n-biq04i/3ox43y/product_images/uploaded_images/90day-money-back-guarantee-medium.png
The image is a circle but the tagline is almast a rectangle.