The problem with comics cartoon/animes are unless they are made from a 3D program the front and side profiles almost never match. What you can do is use the front image as the primary and use the side as a reference image. Take the model from begging to end and don’t wary if it dose not come out as you would like it. It may take two or three tries before you get it to you liking. Art is not an exacting science so you will need to learn from experience. And there maybe other considerations to taken into account as you make your model.
You can also cut and past some of the body parts from existing models on your AM disk to help you get started. And after two or three models you will find you will be able to make these features your self.
If you would like I can show you some of the progression I did with the first model I am working on now, and I was in the same boat you where two month ago.