1 service panel 2 aux panels

Any issue with this set-up?

200 AMP main service panel with 100 AMP breaker to first aux panel. 100 AMP aux panel has 60 AMP breaker to second aux panel. Thank you

I can’t think of anything right off. Typically, the load side equipment would both be 4 wire feeds.

Service entrance is 240V. Two hot one neutral.

I think he means two hot, one neutral plus the bare grounding conductor. All the subs are grounded to the main.

If the wiring has a homehandy look to it, I’d just note it as “amateur workmanship” and maybe advise a check by an electrician.

Yes, the neutral and ground are separated and the neutral is isolated at the subpanels, typically.