Ice cave modelling and texturing ideas!

so now that the exterior is done, its time for the interior! i have looked at images i have found on goole like the one bellow but i just dont like how it looks, i can see its an underwater cave but i just cant see myself modelling that, looks too boring! i want to make it look like a monster lives here.



as you can see, its interesting but not scary looking.. While watching Ice Age 3 i found this, as you can see its much better! although its no underwater, it looks more like a lair! i approached the director witht this idea and he agreed with me. so i started work on the cave!

here are some images which i used to develop my cave.






I hope you agree that the images above surely add to the importance of a lair! it looks perfect to what i would like to model! from looking at these iamges i want to be able to achieve a shader affect like the one above! i think it might be mission impossible! i will probably have to result to searching the whole of youtube to find something to help me!