is the brazilian poster still relevant

so i was looking back at the brazillian poster, and then at trailer screenshots and the toys and i notices some slight diffierences.

1. the neck in the traler apears to be notably thiker and differently positioned than the poster

2.the gills/scales that look like gills are not as prominent in the trailer and are seen farther down and more forward on the toys.

3. the connection between the head and neck appears different, in the trailer and on the toys

4. the neck in the trailer looks a bit more heavily armored but that might just be me.

5. coloration, this could also just be me, but the bluish color doesnt seem notacable in the trailer, and all officialy released  posters make him look brownish, of course the toys have a bit of the blusish colloration so this confuses me

6. the brazillian poster seem to match up much better with the recent leaked images of godzilla promo art/ concept art. i say this becasue of details such as the neck thinkness and snout length. i also say this because if i am remembering correctly, wasn't the brazillian poster supposed to promotional