I was pleasantly surprised

This is an agreeable surprise

"Life should be varied and interesting, unexpected and changing"

Surprise!

I've planned something special for you!

Prepare to be amazed!

This comes as a surprise.

That's fantastic!

How delightful!

This is terrific.

This is incredible.

She got a big surprise when she opened the gift box.

The unexpected visit surprised everyone.

希望这些文案能够帮助你表达各种不同的惊喜情感。