Great! Best fish head curry in Singapore, IMHO. It’s Singapore-Chinese-style curry - lighter, with coconut milk for added richness in the gravy.
Banana Leaf Apolo (sic) is a good representation of Singapore-Indian-style fish head curry. It’ll have a heavier scent from the use of fenugreek, cardamom and other Indian dried spices, some tamarind will be added for the sourish tinge, and it does not have any coconut milk in its rendition of the fish-head curry. This is, in a way, quite representative of Tamil-style cooking, which does not utilise coconut milk, unlike their fellow South Indians - the Keralans.
Personally, I prefer Samy’s in Dempsey Hill for my fish-head curry. It’s still family-run:
https://www.channelnewsasia.com/news/cnainsider/samys-curry-dempsey-hill-father-daughter-family-business-10185796