30 noses from different angles. Referenced a looooot of photographs to give you guys a variety of realistic shapes. Should I do more? Are there any other features of human anatomy you'd like me to make references for? Let me know!
From my sketches of Rose Tyler here ashesto.deviantart.com/art/Ros… you can see how I draw her nose from various angles, and hers is very round and slightly upturned. I usually start with a circle/oval for the "tip" of the nose and construct the rest of the nose around that. The shape and placement of that circle/oval generally helps me determine the shape of the nose and where to put the nostrils, which then determines how up/down turned the nose looks.