To the best of my knowledge, the only photo depicting the Zoo's last Thylacine is the second one shown above, with her yawning and a drainpipe behind her. Of seperate interest is that it is also one of only two photos that appears to show a Thylacine in a thicker seasonal(?) coat.
At least one of David Seth-Smith's photos show an animal with a damaged foreleg- this was certainly an earlier specimen and not the last one. I think these guidebooks during the last ZSL Thylacine's life for some reason probably all featured 'stock' photos of previous specimens and which all are already well known to Thylacine researchers.