There is just a tiny bit of detail in the girl's ace, if was me, I would scan it and fix it the best you can in LR or other editing app then unless you have a decent black and white printer have it printed. The negative with the man on the wall has enough detail that it can be printed but expose for the shadows and let the highlights fall where they may, the story is the man not the background. You can also try split grade printing, not sure how much an improvement you will get.
The Olympus 35RC is a nice camera, but is very limited to deal with backlit scenes, you need to be manual exposure mode so you can open up 2 to 3 stops. As you travel to Africa on a regular bases I would consider a small late 90s SLR, Nikon N 70, Canon Rebel (if it has spot metering) or a Minolta 5. I a 5, not a pro grade camera by any means but does have a spot metering button in back. When shooting in matrix metering mode and in program, manual or any of scene modes and you run into a backlit scene all you need to do is the press the spot meter button on the back and shoot. I shoot mine in manual mode, this case a person with dark complexion I would give it 2 stops so the skin tones are in zone III.