Frog

Yes, pelophylax of course and not renophylax! That's the side effect of changing between greek and english keyboard settings :-)
I didn't knew they are a separate genus. Modified to be more general as you suggested. Thanks!

I guess you mean pelophylax ioannis? Indeed possible. The taxonomy of these is quite confusing but they're now considered as a separate genus from Rana. The safest option here would be to have it as Frog, Raninae :-)

I think it's probably Rana relophylax but I'm not a specialist and my photo is not very clear.

Not a bullfrog (Rana catesbeina) as these have no dorsolateral folds, which are well visible here. But definitely Rana sp.