hogwarts castle model so far

i went into hamleys last month and saw the most perfect Hogwarts i really had to get even though being a barrow lad im skint 97 percent of my time so there was no chance, then i thought why not just make one!!!
heres it so far i used every scrap of card in my house and celotape im gonna paper mache it and use acrylics to achieve the stone appearence of the norman inspired structure, i hope to make a large landscape for it too so it can fit on my shelf as a nice display i cant wait to add more to it.
im proud so far because the only tools i have used are card scissors and celotape i havn't made any measurements or straight lines just cut and stuck, i didn't have any reference either just what i remember from the films, im making the castle on its appearance in deathly hallows part 2 with the long viaduct that goes to the mountains.