Exaggerated Perspective...
I'd say that this actually is a pretty good tutorial. There are a few minor gripes, while I shall inform you on later, now it's time to break your création down.
Graphics: Pretty nice, nice geographic shapes, and you seem to have a good perspective on 3d (hmm...I wonder why...) I didn't really like the blue clashing with the blue (your favorite color I presume) But moving on, it started to impress me quite a bit.
Style: Exaggerated Perspectives are pretty stylish
Interactivity: Well, I liked the way you could either click or use the arrow keys, that was fun, I was pressing the left and right arrow keys like the world was going to end, it was too fun scrolling with the arrow keys. That's something all tutorials should have, scrolling with the arrow keys, I could write for hours about the arrow keys, but I'll stop here since only 4000 characters are allowed and I've written around 500 so far, but I could write a 4000 word essay on the arrow keys part...I LOVED IT.
Overall: Two words. ARROW KEYS!!! ...oh, and the tutorial was nice also.