Ecstasy Is

Our cat was biting her hand so it's a mixture of pain and laughter...

I would not use the word agony, but suffering is probably more appropriate. Agony is more still.

I can however see a bit of laugh here so there is really a mixed feeling,

Anyway it is well composed and I like it, thanks to have a look the the one I have also sent today, Jean

I like the shot and the lighting but the expression is rather ambiguous. Could be laughing, or singing as well as agony.

It looks more like ecstasy to me.