Excellent progress, and great to see some family and friends pitching in to help....it makes the job more enjoyable and a lot easier. I hear your pain on the back-breaking concrete works....I am mid-way through re-building a 30 foot retaining wall on our suburban boundary. Had some help for a day from my wife and older son...but apart from that it's just me. My dad turned up for the concrete pour - but it went so fast that he nearly missed the job. I had a truck and a pump due to the rough terrain and lack of access.
Saved me probably 3 days and some time off work to follow.