Hi,
Here's a slight rework of the inside view. I just added some texture to the walls, and made the stars a little better with some shading - took away the black outline as much as I could. Added a door & staircase on the left, and attempted to make some shadows for the pillars but it doesn't look very good!

Also, I thought about showing the roof (and the start of the inside of the dome) from the middle background... forgive the gradient, it's just for demonstration - I've really messed up the construction of it though! I don't know how to make the roof LOOK like a roof, it's hard when you can't see the side walls. Any help with this or the other ones I posted earlier, would be greatly appreciated!

Thanks!
Here's a slight rework of the inside view. I just added some texture to the walls, and made the stars a little better with some shading - took away the black outline as much as I could. Added a door & staircase on the left, and attempted to make some shadows for the pillars but it doesn't look very good!

Also, I thought about showing the roof (and the start of the inside of the dome) from the middle background... forgive the gradient, it's just for demonstration - I've really messed up the construction of it though! I don't know how to make the roof LOOK like a roof, it's hard when you can't see the side walls. Any help with this or the other ones I posted earlier, would be greatly appreciated!

Thanks!