Some more inspiration, thinking in 3D/cross section instead of just side view there are opportunities for some interesting things, especially if you play with the multi layer thing perhaps. The tang could also do something interesting perhaps.
Good point cwatkinson about the handle shape (and length) being specific to the function. I have a set of Global knives and each one has a different handle shape and profile from Santokou, Chef, Cleaver, Veg knife, etc.
R