Having the RCBOs operating the "wrong" way around is less than ideal and depending on the customer I would either stick massive labels on the board indicating which way is on/off for each switch or replace them. They are the modern Hagar RCBOs. I suspect the original MCBs have been fitted the "wrong" way around. I recently worked on a board similar to yours and they were the other way around.
Having the RCBOs operating the "wrong" way around is less than ideal and depending on the customer I would either stick massive labels on the board indicating which way is on/off for each switch or replace them. They are the modern Hagar RCBOs. I suspect the original MCBs have been fitted the "wrong" way around. I recently worked on a board similar to yours and they were the other way around.