They're asking why the Zelda from Zelda II: The Adventure of Link isn't in the image. She's actually a completely different character from the one from The Legend of Zelda (NES), though I couldn't find any images of the former that could be distinguished from the latter.
CD-i GamesA Link to the PastFour Swords/Four Swords AdventuresOracle of Seasons/Oracle of AgesTV SeriesCaptain N: The Game MasterOcarina of Time (Adult)Hyrule WarriorsToon Zelda (The Wind Waker/The Minish Cap/Spirit Tracks)Cadence of HyruleEchoes of WisdomTwilight PrincessSkyward SwordSpirit Tracks (Phantom)
Breath of the Wild
The Legend of Zelda (NES)Tetra (The Wind Waker/Phantom Hourglass)A Link Between Worlds
