Thank you for your feedback! Maybe I've just been looking at them for too long so the mix of the blocky and smooth started looking weird to me, haha. But if it's not as noticeable/bothering then I won't mind it too much when creating new models and just use what looks better to me for the individual objects.
The player standing out like that is actually a good point I hadn't thought of! Perhaps I will use the concept of them being a visitor in the world when creating the new player and NPC models, thanks! :D