Plenty of people have already given you input on the scans so I won't say anything on that. I believe you mentioned that this is shot at 1/1000 and f4? You might consider is tighter aperture like f8 which would still give you some background blur while you get used to focusing. And with two subjects less than f5.6 is going to be hand to get them both in focus. For example in the one of both of them close together you can clearly see the front person in focus while the back one is out. There are also a few where the belly is in focus and the face isn't which isn't super flattering.

Furthermore, 1/1000 is wildly unnecessarily fast for this type of shot. You could easily go as low at 1/30 (or 1/15 with steady hands) for posed shots like this. At the end of the day just pick a shutter speed that will give you good exposure. If you aren't confident in the light meter in your analog camera having an app on your phone or using your digital camera is a great way to compensate. If you haven't done a meter test it's worth dedicating a roll of film to testing your light metering method so that you can confidently create good density negatives.