Hello! I've started working on custom TARDIS' interior builds and I'll be sharing some of them! 

Completed builds:

Coral (Will still improve parts)

Being worked on:

Hell Bent Console

5th Doctor console

Toyota

Planned consoles:

1st Doctor console

4th Doctor secondary

8th Doctor

War Doctor

Rani's

Master's

(Feel free to suggest more!)

Coral Interior (more pics to come!):

Improved Standard Toyota (12th Doctor):

Improved Standard Toyota (11th Doctor):

Hey !

Can't really see how this list is custom TARDIS interiors, but anyway ...

About your Coral ! Can we have more pictures of it ? One is not really enough to give a good opinion. But still, there a a few things you can correct, I think. First, the walls shouldn't be all roundels. There's a specific block in the mod to be placed in between the Coral's roundels. There, it just looks too full. Moreover, the shape looks a bit weird, especially on the top. To situe what I'm talking about, it's the part above the doors, that's 4 blocks high and that goes "back". I think this is something that would need to be changed to. The Coral interior is the half of a sphere, the isn't this kindda irregularity in the shape. To figure it simply, it's like a dome. And one last thing about the lights. Here's a tip with the Coral pillars: place a glass block under the pillat and place the glowstone under the glass. And about the glowtone ... There's a bit too much of it, actually. Two lines above the doors seem too much to me, and I can't clearly see the ceiling on the picture you posted, but I think it shouldn't be lightened at all. All the light comes from the Console and around, but not from the walls or ceiling.

Here's my opinion and a few things to correct. But once more, it would be better if we had more than one picture to give a proper opinion. 

Good luck o/

I like certain aspects of your Coral, especially how you did the console. More pictures would be nice though. Bear in mind that the wall sections are 12 roundels high too. (I think.)

 New pics away to come! Thanks! And yehh there's alot of changes I've started.

 Thanks for the feedback! I forgot to add the wall dividers so they'll come hopefully tomorrow, thanks for honest feedback! 

Got a few more pictures but tomorrow I'll hopefully have some improvements so more pictures then. 

do you build these on DMU  or singleplayer?

 Single player, I attempted to make it on DMU once but the cost is a bit much xD

Improved Toyota/Default room:

Lowered Floor

Console which kind of represents the Toyota

Used Moddelled Pillars

Few other Changes