Hi Brother
Looks good – on first sight, i would suggest du ad better contrasts (Type, images, shapes) and make sure to use consistent Font (Type and sizes). The fly-out/off-canvas menu can be done with an overlay, instead of copying the artboard.
Good luck, happy prototyping.
Also, for the next level, check out this fancy plugin for Animation/WebExport: https://xdhero.com/
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