The following skin options appear to fallback to the "Default" texture
CAN_Summer
CAN_Winter
DEN_Autum
DEN_Spring
DEN_Summer
DEN_Winter
GRC_Autum
GRC_Spring
GRC_Summer
GRC_Winter
NETH_Summer
NETH_Winter
SPN_Summer
SPN_Winter
Desert
Also FIN_Winter shows as Canadian w/ snow.