How did they not look out of place in FFVII and FFVIII's realistic worlds then? In FFVII Titan, an underwear-wearing giant man, was lying around in a junkyard inside a red ball, lol. FFs always juxtaposed realism and fantasy.
So much looked weird in FF7 that it all looked ok, cartoony even, they all look sort of chibi. FFXV is closer to uncanny valley when it comes to seeing Titan and Ramuh in it's realistic looking open world. Again Leviathan looked great in it's shot, lots of water, and game looking buildings, it just looked like a incredible video that could be passed as a past FF CG movie. I didn't play it nor do I remember much, but even FF13 looked anime with it's art style. FF14 looks great as well, it's summons, and art style when it comes to summons (please SE give your summoners real summons, not those lame egis. PS3 is out now, I'm sure PS4 can handle it!)
Oops I may have been mistaken. I thought the giant humanoid was the titan of this game. It seem like this could be titan. If so this one looks a lot better. The giant human creature just looks odd. Edit: Oh wow, I screwed up. This is FF13's Titan hahahahaahaha. I'll leave this in because it made me laugh at myself hard. FF13 did look good though, nice art I just didn't like the way the gameplay sounded. Seemed quite boring.
What lead me to think it was FF15's. I searched titan ff15 in google and saw this in the image search. I thought it looked good so looked for what it was. I didn't remember the real titan being called by that name, I figured that I assumed it was titan all this time. Anyway, I'll just wait for more summons to be shown, and I don't mind the summons appearance. I'm sure they will look cool in their own ways.
I'm looking forward to this game's release a bit more now because I want to see how it turns out, what is what, how much people enjoy it, and how far the hunts go (loved hunts in FF12, I hear hunts wasn't as good in FF13).