A leather snake effect handbag / shoulder bag  and hand-painted details sounds like a unique and artistic accessory.
Material:
Leather: A leather handbag provides durability, a luxurious feel, and ages gracefully over time. 
Color Palette:
Consider the color palette of the patchwork and hand-painted details. The combination of colors can significantly impact the overall aesthetic of the bag.
Strap Options:
Depending on whether it's a handbag or shoulder bag, consider the strap options. Some bags offer both handles and a detachable/adjustable shoulder strap for versatile carrying.
Brand and Craftsmanship:
Consider the NATC brand's reputation for craftsmanship and attention to detail. Brands like this, with a focus on quality are deliver a well-made and durable product.