i need some help from you taxi's or anyone that has a buck mounted on a panel...

im trying to order a custom panel for my mount, but dont know what size i need...mount is a mckenzie semi sneak offset shoulder...

i can order 19x24, 16x20, 11x14, or 9x12. obviously i want one that will be seen..its an arrowhead design..figure a 3-4 maybe more inches showing around it...was just going to order the 19x24 but that might be overkill..i dont want it taking away from the mount and being overly huge...

what size panels do you guys mount yor whitetails on typically?? thanx alot