My family and I definitely believe that the first (black and white photo) is the correct one of Chief Ahmed because of the resemblance to my Aunt. The sepia photo may well be Gaming's family. But after having studied the documents that he put up, the blue Canadian discharge book, 6694, it describes the features of the seaman and you will note it says "scar on forehead". So if you look at the black and white photo posted it clearly shows a scar on forehead, and the sepia photo does not. This leads me to believe that some of the paperwork belongs to "our" Chief Ahmed, and may have been appropriated after his death in 1928.
The sepia photo seems to be from Certificate of Registration which has date April 1925. See Reply # 78 by Elwyn on this thread. We don't know when the photograph was taken - whether it was a brand new picture or one he already had. It seems to be of a very young man.
The seaman's documents on the other thread were issued in 1926. He had 8 months to acquire a scar. I imagine that injuries to seamen were not uncommon. Onshore, there was a report of him having a fight (1931), so he may have got a scar in a previous fight. The seaman's logbook page began January 1926 and went on for a few years.
The mark between his eyes on the other man's photo may be a furrow rather than a scar.