Thanks for the replies guys.
I tried to stick to using vertical covers but with all the games I have there are only so many that have been made in the vertical format. All the covers are PAL, however theres a couple which have the NTSC spines but PAL front and back covers.
Being as the N64 library was quite smallish, that was my prime reason for collecting them.
I did a few more covers last night:

and heres the rest of the carts I need to box up:

While I'm on the vibe of posting pics, heres all my original boxed games (excuse the pink walls, I've just moved in and this was the previous owners kids bedroom):

