need MF suggestions

Current SIPs (₹45k/month)
Axis large cap - 15k
Parag parik flexi cap - 15k
ICICI prudential nifty 50 index fund - 15k

Risk appetite: high

Investment Horizon: 5 years, started sip post covid

Need advice on

1. Is this SIP allocation okay, or should I change funds (esp. large cap/midcap mix)?
2. Should I increase SIP amount or start new mf?
3. which gold ETF should i invest in ?