Aussienscale,
Just went back to have look again at the link you put up a few days ago about Adelaide.
You also mentioned that there were some later pic of Canberra, nothing too exciting as you said.
But on the last page (page 5), bottom two shots, in the forground is the latest Spanish F100, Cristobal Colon (F105), see the link below:
fotosdebarcos.com / fotosdebarcos.org :: Ver tema - 02 HMAS Canberra
From what I understand the 3 AWD's are based on her design, which was modifed from the first four F100's.
You can see the "sqared off" funnel behind the bridge superstructure and also the relocation of the "dome" from the small platform jutting out between the SPY panels, to a higher position.
So as you said, nothing too exciting about Canberra, but a closer look at what the AWD's will eventually look like.