Thank you for bringing one of my favourite Sharks to the Game, im quite excited to dedicate a new Tank for him!
But if i may bring up a spice of criticism: Nose to Pelvic Fin, the Sevengill looks a lot more wider/massive, especially the Head.
His Pectoral fin is longer and pointy, his pelvic fin is smaller, pointy and more attached to the body.
Older specimen attain a darker color with age, but your version is also represented.

Thank you for your Work, ill be looking for new Updates and Mods on your Page =)