Sonic the Hedgehog

[Baegal]

While the idea is nice, I'm spotting a few problems with the emeralds. I understand they're emeralds, but I have NO idea what is going on inside of their lines. I used to do the same thing, so I think I can help.

see, the right conveys depth and dimension with its lines. You can tell that the front is made up of 7 planes with the middle plane higher than the rest, and the 6 surrounding planes connecting to it, forming a slant (If you understand what I'm trying to say).

With yours, however, it looks simply like a bunch of unnecessary lines in a square.

Using lines to convey the form of the object is EXTREMELY important, because if it isn't done properly, you won't have a clue what to do when trying to shade it.

Secondly, if your drawing is supposed to be based off of the first sonic game, there were only six emeralds at the time, but that's just me nitpicking.