Place it right after the happy announcement in your edit, then follow it with Yaaaay Cheer to lift the celebration higher, and keep Oh My God Meme for the shocked reaction just before it so the reaction builds in stages.
About this sound
A short Spanish voice clip repeats qué emoción three times, stretching the last one into a long, wobbly exclamation that lasts just over four seconds. It feels giddy and over the top, like someone who cannot contain their delight at good news or a sweet message. The drawn-out delivery makes the excitement sound playful rather than calm, and easy to picture aimed at someone special.