Hiya,
In theory I like the name panic, its zippy. But on 2nd consideration - who wants to hire a photographer who panics, gets flustered etc - and while I am sure this isn't you - the connotation is there.
Sunshine... I find it blah. nothing special. A bit boring.
You don't want to use your name? so and so photography?
It took my business partner and myself aaaaaages to come up with a business name. We eventually settled on Sierra Nova Photographics. Origionally were going to go with the call signs for each of our first name initials, but then decided November sounded sucky, so went with Nova.. if that makes any sense.
As for ideas for you... I'm thinking, but a business name is a pretty personal idea.
Maybe it would help if we knew what kind of photography you shot?
Hope this ramble helps in some form!
Naomi