thx again for your comments.
Bullet: you never like my green ideas!!
but since this dino never exsisted i have decided to go with an alien atmosphere or a planet that is still evolving. I dont plan on using clouds as i like the gassy feel, though i am thinking of adding a volcano and trees.
Under the water i am not sure what i am going to do to add more realism, the bottom and bank are not visible through the murk so its hard to add things for people to see. Maybe model some fish?