Yes - it looks OK to me. It's 4 continents, and you have 6 more segments for free if you want them! Personally I would take LHR-HKG to get the CX experience if you are in J or F then side trip NRT and somewhere else in Asia (SIN, DPS?) and perhaps some more segments in SWP and Europe?
CAI-LHR-HKG-NRT-HKG-DPS-HKG-AKL-MEL-PER-DRW-SYD-SCL-LIM-SCL-GRU-LHR-RIX-LHR-MAD-CAI