1 Haiku often fails by being a list of words.

It is an elegant and difficult form. Sorry, this doesn't make it.

2
Its dark dead and damp
Where two frogs silently sits
Floating in a pond

really works!, only crit,
Where two frogs silently sit

3 doesn't make it, it feels westtern

4. Not quite there, too decriptive, not enough profundity.

I apologise for being harsh, but haiku is a profound form, there is no room for disccrepancy.

#1 last line appears short one syllable and line 2 try twinkles
#2 I like this description
#3 I think you mean deep breath, but also liked the olfactory image
#4 last line try mists, good description of the moisture cycle in mountains
sorry for being late. It's been a busy last coupla weeks................stan

Your selection of four:-
1:- having trouble with the syllable check on "Gibbous moon high"
and the theme is stretched..

2:- there is no need for "sits" it can be singular and rather float "on" a pond than "in" a pond
3:- Is a mix of physical and seasonal, something like "drifting over fresh cut grass" " Breathing summers air" I haven't checked for syllable's on these two bits.. Putting "She" in there makes it Physical.
4:- mist raise can be:- mists rise will see if this changes the count
Apart from that as this is my first foray into Japanese poetry what the hell do I know lol , Yours Ian.T