dnd 3.5e – Planar Shepard more Druid Stacking wild shapes

Regarding the class Planar Shepard says:

Wild form (Su): your druid levels are stacked with the planar shepherd class levels in order to determine the number of daily uses, the maximum HD and the size (but not the type of creature) and the duration of your ability wildly.

The Druid class explains the sizes of the animals that you can convert in relation to the druid level, small and medium in level 5, large in level 8, small in 11 and huge in 15th.

Could a seventh level druid, a first level planar leopard, become wild in a large animal?