Observatory TARDIS (I think this can be improved but I'm not sure how...)  

Observation platforms:

Console room:

View above:

P.S. I'm using dhi_awesome's model pack for some things

The barely flyable TARDIS:

That last one's great XD

Only problem is that the rest of the Tardis is visible from the room

Dungeon TARDIS:

Maybe add some iron bars with an iron door leading into the console room,to make it more like a dungeon.

maybe use lava behind glass or iron bars for lighting??

 Nice, didn't think of that, I'll post an improved version later

Improved dungeon TARDIS:

 niiice :3

I really like the dungeon one. 

It's not  actually made with monster egg blocks, is it? XD

Forest TARDIS:

I really need some suggestions, running out here, this one was just a remake of my Floral TARDIS xD

Maybe you could have a go at doing a Halloween TARDIS interior or a battle TARDIS interior or a House TARDIS interior or a Dalek TARDIS interior or the Shalka TARDIS interior or  Mystical Castle TARDIS interior (A magical looking one) or ... or... I've got nothing more. Enjoy building new TARDIS interiors based on these ideas. :)

 o_o Wow that's a lot, thanks!

i love your interiors Starlord!  (first time i posted with custom emoji)

First try at the Hell Bent TARDIS:

Monitor (I used dhi_awesome's scanner model, I had to try to expand the model in order to hide the background)

For all you accuracy over aesthetics fans: (Looking at you, Ford)

Definitely not a fan of the Hell Bent. Much too square and not enough detail, keep trying.