This isn't all. Sketching Goro is a necessary first step. You need to take a lot of things into consideration when designing this most unusual character. Should he look human, should he look larger than life, should he look as he does in the game; just a few of these things to decide before you build anything, but if the sketches are the extent of your pre-planning you could be setting yourself up for disaster. You need to take the next step.
