Beginner Needs Help Curving Surface

[Anonymous]

Hello everyone,

Beginner here trying to understand how to give this piece a slight curve? And also how yo cut it into two pieces?

I've tried watching tutorial videos and searching google and youtube without much luck. I just need to separate the top portion

and give everything a slight curve, this will be a necklace for a cosplay.

Thank you for any direction you can give!

[TrippyLighting]

In order for this piece to have a slight curve you'll have to consider it from the start. One its designed flat there is not much you can do about it.