I find it interesting since I have easier to relate when I know the age. As an example; I could maybe build something as appealing as this castle now, but when I was 13, I know I wouldn't have been able to. Therefore I find it even more impressing now that I know his age.
About the build; Having this many bends and turns on the castle wall really complicates things. I think you'll have a hard time decorating it. I won't say you can't though, I'm looking forward to seeing more.
Very nice. Just make sure you do more then just brick walls. Would love to see some kinda detail in the walls. more color.