I'm leaving it as partially translated since I don't really feel the need to translate the text in the top/right panel, especially since portions of it are cutoff, though anyone else is free to apply their neurons to the task. I'll do the SFX tomorrow, but they're basically cicada noises, the same noises that Nonna and Katyusha are making, which is the punch-line, i.e. they've been doing all of the cicada noises for the whole comic.