Here's my latest fairy door. It's only about 2 inches tall. I think I need to start making larger doors.
There is this life rule that says: if you are unsure of the feasibility of something, try it on a smaller scale. This makes sense on so many things: food, buildings, social experiments... However, when it comes to crafting, it seems that a small size can be too limiting and so making a larger version of an items allows for more details.