Covers ( CD , DVD , etc ) - WIP

Hello there. I’m trying to model covers of CD , DVD and etc. but i need some helps for some part of it. so i need your helps in steps of create these covers.
The first cover is “CD - Jewel Box”.The refrence image is here:

And what i did is here. that’s not complete :

Now my questions .
I used a box for the front plastic of this box. do you think is it good? or a plane is better for that?
The second problem is circles, i can’t model the clamps that hold the album cover.
I’m from iran so i can’t watch videos from youtube.
Thanks for your helps :smiley: