Technology in the 1970s was barely capable of getting a probe to Mars, let alone achieving orbit, landing, completing science, then returning. Here you have one failure, followed by an unbroken series of successes way in excess of what is achieved in OTL. It's better than the original draft, but still not really plausible. Look at the OTL failure rates for NASA, I fail to see why the Commonwealth programmme would do better than this with way more complex missions.
You've also got to address the political aspect of this. This is a huge investment for the Commonwealth, why is it happening? I'm sure there are some realpolitik reasons behind this, just as there are with the rather esoteric ship names, but it helps if you actually explain them in the timeline.
EDIT:
With three separate space agencies conducting missions to the moon, there doesn't appear to have been a single incident or fatality is any of the programmes. Again, this needs addressing; rocket science was in its infancy, and if we are to assume US/German competition as an analogue of our Cold War race, there will be huge pressure to push the bounds of the achievable which will result in RUDs, deaths, delays and rethinks.
You've also got to address the political aspect of this. This is a huge investment for the Commonwealth, why is it happening? I'm sure there are some realpolitik reasons behind this, just as there are with the rather esoteric ship names, but it helps if you actually explain them in the timeline.
EDIT:
With three separate space agencies conducting missions to the moon, there doesn't appear to have been a single incident or fatality is any of the programmes. Again, this needs addressing; rocket science was in its infancy, and if we are to assume US/German competition as an analogue of our Cold War race, there will be huge pressure to push the bounds of the achievable which will result in RUDs, deaths, delays and rethinks.