Colour Conundrum: Space Hulk (seeking advice!)

I've been fiddling around with my Space Hulk miniatures again, and I'm struck with hesitation regarding the Genestealers, and by extension the Genesetealer Cult.

You see, I've a fair bit of Genestealers to paint:
-Two full Space Hulk sets (the 2009 and 2014 editions)
-A full first Edition Space Hulk set
-My own personal Space Hulk set (collected and converted from 40K miniatures for my Long term 3D Space Hulk plan)

And a good bit of Genestealers Cultists:
-The content of the Deathwatch Overkill set
-The Genestealer cult I'm building/converting for my own personal Space Hulk Set (Which, once/if ever completed, will include all the miniatures to play every edition of Space Hulk...)
The choice I make for my Genestealers, will also influence this Cult, as they will need to match visually.

Originally I always just assumed I'd be painting them in the Classic Genestealer colour scheme.
As evidenced by my test models here:

But now that I'm on the verge of actually painting the Genestealers from my Space Hulk 2009 set, I'm beset by doubt.
You see, I'm being tempted by a altogether more dark and sinister colour scheme, inspired by the PC game Space Hulk Deathwing... Something more like this:

These pics I found in my Inspirations folder, I have no idea whose these are, sorry. (Curse my digital magpie nature!) If anyone knows, please tell me, so I can give proper credit to an excellent painter!

This will also mean that my Genestealer Cult will follow the same darker and sinister colour palette.
Both the own conversions and the Deathwatch Overkill ones, as these will also be used in combination for Necromunda, Inq28, possibly even 40K.

For the classic 1st edition set, there is no choice, it's self-contained so will be in the classic colour scheme, as an homage to the "good old days".

Leaving me several options for the newer sets and my own collection:
-Everything gets painted in the classic scheme.
-The Space Hulk sets go in the "new" scheme, my own collection (plus Cult) in the classic scheme.
-The reverse: the Space Hulk Sets go in the classic scheme, my own set (plus Cult), go in the "new" scheme.
-Everything in the "new" scheme.
-One set goes in the classic scheme, one set in the "new" scheme (for me, preventing them being combined into a large mega-hulk, because my brain works that way...), my own collection goes in either the new or classic scheme.
And I can't decide...

Of course, the Genestealers and their Cult won't exist in isolation. They'll be inside my Space Hulk terrain (either the cardboard sections, which I assume everyone knows the look of by now) or my 3D terrain, which looks like this:

And they'll be facing my Terminators, consisting of the Blood Angels from the Space Hulk sets (in their traditional colours), a set of Deathwing Terminators, and of course, my own beloved Howling Griffons First Company. Pics for reference below:

My Deathwing squad

The Deathwing and Genestealers in their natural habitat

My Howling Griffons:  

As well as against my =I=Munda/Inq28 Salvage crew:

If you have an idea how I should proceed with the colour scheme, or any other suggestions, please let me know. I'd love to have your feedback in solving this conundrum!

Thanks, and see you next time!