Hi Xer,
I’m so sorry, but all the pics are simply too small to enlarge them and recognize details.
All I can tell without doubt is that the second bike you posted must be newer (it has already the EU compliant, reinforced frame).
Just - that is, at least for my meaning, not really an argument for a higher price - it will be interesting for very heavy persons only.
The older frame is for sure not “bad” - the EU compliance just a prostration for my taste…
I could not tell which one is better without getting them in hands.