Training - Weight vs VO2max vs Heart rate rest

Objective here is to have a high VO2max (polar simulate this with OwnIndex), a low heart rate rest rate and an optimal weight. I think the results are self explanatory, showing improvements as I got fitter. The "bounce" in July of the resting heart rate I feel was due to a new contract I accepted in The Hague....Obviously the impact of change and a new environment!