As an ETFs pie, I will try to go with a personalized alternative to all-world FTSE (VWCE) but based on MSCI: SPPW+SPYM+ZPRV+ZPRX (70+10+10+10). Once these will get fractional I think I will keep it in parallel with VWCE as I am not so sure my custom SPDRs ETF is the best idea yet (still 0,18% TER/OCF vs 0,22%).
For now, I have a testing pie with equally weighted hydrogen stocks.
You have an interesting approach and thank you for sharing your pie! I might get some inspiration out of your strategy. 