the Andorians in Episode 2 look like TOS andorians (and the one Andorian shown in TNG) with antenna on the top of the head, with a suction cup like tip. In Enterprise, they were redesigned to come from the forehead (and they had the ability to move thanks to practical special effects). It was that design that was used for Discovery Season One.. However, in episode 2 of Picard, they are closer to the first design (I prefer the second design)