Eran,
Thanks for posting the pictures. It's exciting whenever you start a new aquarium, isn't it?
I find your rock placement unnatural at the moment. The center rock feels like it will fall on the shrimp and squash them.
From a macro perspective, I like your thinking of separating the rock placement into left and right and having one stone be the focal point slightly off center. However, the placement of the rock groupings is off. The details.
I always prefer (my personal taste, mind you) to follow
sanzon iwagumi or roughly translated to be triangular placement of stones. See the
ADA Beginner's Manual. The stones need to feel like they've always been there and that they are supporting each other. Sometimes the stones on opposing sides are pointing towards each other.
Here are some examples:
And one from our friend Vincent:
