The image used to promote the promo seems to be generated by AI, but I'm not sure about it 100%. Anyone else noticed and could confirm?

I assume if it's not from one of the games in the sale, it's done by one of GOG's in-house artists.

Edit:
I dug up a thread wherein two GOG staffers link to some of the artworks used for GOG sales.
Maybe you can contact them (PM) and they will give you a link to this sale's artwork, too?

https://www.gog.com/forum/general/bthe_new_year_sale_2023_with_over_3200_deals_up_to_95_giveaway_gog_bundles_byob_and_moreb_cc512/post74

https://www.gog.com/forum/general/bthe_new_year_sale_2023_with_over_3200_deals_up_to_95_giveaway_gog_bundles_byob_and_moreb_cc512/post82

Have no idea if it's AI-generated, but...

... it's a striking image.

I'm usually nonplussed by most of GOG's sale page art (see most of it as more utilitarian than expressive) -- and this artwork is not "my style" -- but this is a strong yet simple image. I'm impressed.

I think it looks really good.

On GOG all art is done by skilled humans, it is the customer support that is done by a bot ;)

So, the art is made by humans... but who made the humans?

Other humans. But I won't tell you how...

Well, I was wondering where Al Gore was.

He was replaced with AI Gore.