https://en.m.wikipedia.org/wiki/Nandi_(bull

The one that I think saying might be Shiva, looks like Kali, severed head, tongue out, also carries a trishula..

Ultimately Hinduism is interpreted how ever it best suits the individual. For me it's monotheism at its core and the gods are masculine and feminine expressions of the trinity Brahma the creator, Vishnu the preserver, and Shiva the destroyer..Depending on the region and the timelines there will be various attributes and traditions ascribed to each manifestation.

Vishnu for instance has 10 incarnations with the final form yet to come. Some claim Jesus is one of the avatars, some say it's blasphemy. What I love about Hinduism is that it's not technically a, religion. In fact Hindu just describes a geographical location, the vedas can be taken however one chooses with no central authority dictating the meanings..