Initial Sketches and little bit of research.

At this point I am just doodling some ideas down.

With the idea for the skeleton I was thinking of the giant Mythosaur skeleton from Star Wars,to quote Wookieepedia

Mythosaurs were a species of animal native to the Outer Rim world of Mandalore. Enormous in size, the mythosaurs dominated their world until the arrival of the Mandalorian Taung, led by the warrior known as Mandalore the First. In a campaign to conquer the world for their own, Mandalore the First and his crusaders slaughtered the gigantic beasts and drove them to extinction. The skull of the mythosaur became the symbol of the Mand'alor—the traditional ruler of all the Mandalorian clans—the planet Mandalore, and of the Mandalorians themselves for generations after.

I really love the idea of the skull of a Mythosaur being a symbol for the people, there was also the famed 'City of Bone' which was a failed Mandalorian Theme Park. I also like the idea of people using a skeleton for some purpose, like I would love for my people to have gathered to this skeleton for some weird religious reasoning. They all end up and build a citadel underneath the skeleton because even though they all have different ideas of what the 'God' is they all understand it has the same purpose for all of them so less fighting ..... more praying!

http://starwars.wikia.com/wiki/City_of_Bone

Maybe use weird animals?