These all look like fun little projects.
My favorite is the picture frame with the leaves and the slide-out back.
My least favorite is the box. Are you showing in the bottom picture one box that was a mass-production piece for the brand whose logo is on the side and one that is your duplicate of it, or did you make both boxes? I think you should go for something that is entirely a brussveins original, so that your sister can be proud of having something you made rather than something that looks like it came from a particular fancy store.
A possible future conversation one way:
Sister's friend - "Wow! Where did you buy that box?"
Sister - "I didn't buy it. My brother made it for me!!!"
A possible future conversation the other way:
Sister's friend - "Hey, is that box from ____? How did you get it? Everything is so expensive there!"
Sister - "Um, no. My brother made it for me."
or
Sister - "Let's just say I have a special source."
or
Sister - (smiles and laughs but doesn't say anything)