Hey mate. The proportions look much better! Here are some more suggestions.
I would also stay away from drawn references. They're great for getting an idea of a character, but when using them as modeling references, it's tricky, as you have to imagine the shape; while with a photo, the shadows and highlights give that information.
If you need some references, you can find some here
Keep going! It looks great!
Imagination is more important than knowledge.