The colours of the decoration on the lid and the body are slightly different. This is not unusual. It is quite likely that the lids and bodies of these boxes were crafted independently and then matched up before sale. In this example, the lid is a pretty good fit to the body.
The overall shape of this creature is quite bat-like. Significant features which identify this as a bat include the scalloped wings, the cloud shaped tail and the cloud hooks at the wing tips. The bats snout and body are depicted by a row of short arcs.