Jumbo LEGO Head, spline test

I used Skimbal's head as a base and made a lofted spline based head. This head is not exactly identical. The top peg of mine is not solid, in fact the entire head is more of a tube really, which I also adjusted so the top can fit inside the neck if the heads are stacked, as lego heads do.

I have not printed it yet, but I can increase the resolution pretty easily if any has any suggestions for optimizations. I am pretty new to 3d printing in general.