I can’t directly send or show a photo inside this chat, but I can guide you:

• The moolnayak at Hastgiri (Hastinapur) is Bhagwan Shri Shantinath in many main temples there, but the kshetra is especially famous as the place of moksha of Bharat Chakravarti and 1 crore munis.
• If by “mudnayak” you mean “moolnayak” Bhagwan’s photo of Hastgiri Jinalay, the best way is:

- Search on the internet for: “Hastinapur Hastgiri Jain temple moolnayak photo” or in Hindi “हस्तिनापुर हस्तिगिरी जैन मंदिर मूलनायक फोटो”. - Many tirth-yatra and Jain-site galleries have images of the main Bhagwan there.

For more authentic information about Hastgiri / Hastinapur and its Jain importance, you can read here: “Who was get moksha with 1 crore muni at Hastgiri”