With this character, I found it easier to build him with ZSpheres rather than with Dynamesh or in Maya. I did however build his shoes in Maya since they are more of a flat surface made up of 3 rectangles.
I would probably do his hair differently if I had to model him again. It did not come out as spiky and as volumized as the reference drawing has it.
His face was the most difficult part out of all of it. Since he is a more cartoony character, he has simple lines and little detail put into him forcing me to have to come up with a way for him to have a bone and muscle structure, but still look like the drawing.
For the most part, I think the model turned out rather well. I had never modeled any kind of character/organic object before, so of course it is not the best, but it matches the reference for the most part. I liked modeling the hat and shirt, they came out nicely.