Tried the Normandy look today in preparation for next week. Everything is rigged to the equipment belt and held up with belt hooks. I actually like this look a lot more. It's super farb, though. Blurred a Edge zelt and M42 tunic in 1941? Nah... Farb. Man, I need to lose more weight and get rid of my tits and kidney tits.
Strictly speaking so called M42 tunic in 1941 is not exactly impossible, just extremely unlikely. So called M40 tunics started production around late 1937 to early 1938 and it's possible to find them in period photos at barracks or even at the front, such photos are just tricky to find and even sometimes to recognise the mere difference of collar. In same vein it is perfectly possible to find someone in early war gear by 1943 to 1944, but those guys probably had long garrison duties and barely got time to wreck their uniforms and all that.
Also while of course losing just slightly more weight around waist is not bad idea in general, it is possible to go for stout appearance meanwhile by adjusting posture. In all those pictures you posted you are not standing exactly straight but have noticeable hunch there. Of course, standing straight with good posture does slightly pronounce problem of chest and waist but at least it gives better impression that you have good idea what you are doing, and if you can still run fine for long periods of time I'd consider it good start. If you are bored and want to practice posture aside from standing still, try goosestepping in brief shorts while maintaining stable rhythm and good posture. It's good for balance too and pretty good leg exercise and change of pace over usual training methods.
Also I assume lack of collar tabs is work-in-progress too.