BLUE TONGUE SKINKS

Hello everyone.
I am new to the forum, I have several tiliqua gigas and chimeraes. This forum has a very high level, so I would like to know your opinion about this issue.
Two years ago one of my friends gave me a tiliqua gigas that I initially thought was an evanescens, but the scaling of his head is gigas gigas. The coloration is silver so it adds a little complication to the identification. If you are dealing with tiliqua gigas gigas, what do you think its origin is? I put some photos of the copy.

Thank you very much for your help!

it kind of looks like my IJ but I dunno, the head shape is throwing me for a loop

Thank you for your reply. I'm pretty sure it's not an Iranian Jaya. Her tongue is all pink except the tip. It has more pink tongue than my evanescens.
Is it possible that it is an evansecens but its scales are fused by chance?
I if it's gigas gigas what kind would it be? The black back?

The biggest indicator to me that this is tiliqua gigas gigas, aside from the small adult size, is the scalation on the face, behind the eye. Textbook t.g.g. according to the bluey bible.

Have a look at this thread, Dakota has posted some of the images showing what Im refering to here. Towards the bottom of his first post.
viewtopic.php?t=23788

Good evening,

I would like to ask yoyr help to determine what sort of Tiliqua Gigas this ii, according to the seller he's 2 years but looks very small for his age..

Also, I have a 120x60x60 terrarium, should the bulb be 75w or higher? Thanks in advance!