Curious about the engineering of the 737 Max compared to NG, Where can I find info about the differences and improvements in terms of aerodynamics, structures,

Curious about the engineering of the 737 Max compared to NG, Where can I find info about the differences and improvements in terms of aerodynamics, structures, materials and systems? For example, Does the Max have a composite wing box? What percentage of the Max is composite, compared to the NG? Do the wings use the same airfoil section? Have they been re-lofted, re-twisted? Are there any changes to the high life devices? Have there been any changes to the materials, gauge, design for the fuselage?