I set a main visual style to make a uniformity over three parts of the sketch by color and shapes. I simplify the lower body from Ina's dog to a geometrical style and use random function to add some fun with the dots on the blanket. To the upper part, I directly load a picture of a real man's body to make some contrast. And I also put two little hearts on the man's nipples to make him more decent. For me, the most interesting part of the sketch is how I use interaction to connect the three separate parts. You could move the mouse over the man's body in the second part, which is like you are tickling him, and the dog in the third part will twist its tail. If you click the butt of the dog, the hearts on the man's nipples will amplify to show his pleasure (though kind of bad interest). About code, I spend a lot of time on making the wave lines function and moving them, just working on the accurate value of the vertexes. And I use the function to simplify my code and this is a really useful syntax.