lovely harlequin coloured dwarf lop id say
dwarf lops can vary in size from smallish to big bunnies.
this is the STANDARD or what a dwarf lop should be from the uk french lop and dwarf lop club.
Weight. Maximum kgs 2.381 5lb 4ozs Minimum kgs 1.93 4lb 4ozs
Type. Body short with well rounded loins. Deep chest and wide shoulders, giving a cobby well muscled appearance. Short strong legs.
Head, Crown, Ears and Eyes.
Head: Well developed particularly in bucks. Good width between eyes. Full cheeks and broad muzzle are desirable.
Crown: The basal ridge of the ears should appear prominent across the top of the skull.
Ears: Should be broad, thick, well furred and rounded at the ends. They should be carried close to the cheeks, giving a horseshoe like outline when viewed from the front.
The inside of the ears should not be visible from any angle when carried correctly. The ears are not measured.
Eyes: Round and bright.
Coat: Coat to be dense and of good length, rollback with an abundance of guard hairs.
hope that helps but to be honest medium lop rabbit should suffice on insurance forms