So it seems that the big guy on the left is "Ulfwerener A", sculpted by Pakulkan for the 2007 Skull Cup El Prat, Barcelona, Spain. It's one of two different sculpts, and is probably quite a limited and moderately-valuable miniature!
The smaller one on the right is a Valkyrie Man-wolf by Impact! Miniatures, and sculpted by Phil Bowen (hence the initials "PB" on the tab I presume).