Feedback on long-term indexed portfolio (World + EM + Small Caps)

Hi everyone, I’m building a long-term passive/index portfolio and I’d like to get your feedback. This is the allocation I’m considering: * **Fidelity MSCI World Index Fund P-ACC-EUR (IE00BYX5NX33)** → **60%** * **iShares Emerging Markets Index Fund (IE) Acc EUR class S (IE000QAZP7L2)** → **20%** * **Vanguard Global Small-Cap Index Fund Investor EUR Accumulation (IE00B42W3S00)** → **20%** What do you think? * Is this portfolio well diversified? * How would you adjust it (if at all)? Long-term horizon (+15 years), medium/high risk tolerance. Thanks in advance!