For better identification you can upload one more picture of different side view. But for your better identification you can see the scientific name and link.
Sl No. Scientific Name English Name
1. Halieutichthys aculeatus- Pancake Batfish
2. Xiphasia setifer- Snake Eel Blenny
3. Tetraodontidae (Arothron meleagris)- Puffer Fish
Thanks for the additional suggestions. However, some of these identifications seem speculative. For instance, the identification as Fowlerichthys ocellatus is certainly incorrect as that species is restricted to the western Atlantic (and the colour pattern of antennariids is highly variable; for identification you need a detailed view of the esca).