Comeback navigation: Comeback announcement + M/V Teaser, Schedule + Concept Photos 1 & 2, M/V Teaser Chan ver. + Concept Photos 3 & 4, M/V Teaser Byeongkwan ver. & WoW ver.
Sources: official A.C.E (1, 2)
They both look great. Black haired Jun is everything but I hate the contacts. I wish they had used different audios for the teasers but whatever