Hmmm. My experience with frames is close to zero. Nada. Null. Nothing. More experienced people here can say better things. Actually I like #3 the best. But IMHO there's so little space about the fruits. The frame is enclosing them. I would rather try to add some space, make room for the shadows and even reposition them a bit. Just playing with the elements we have. For a challenging composition this one is very symmetrical. But I dunno for sure, it's just something to try out. Endlessly trying out :)