Oh wow, it looks like the hand is about the grasp the red part. Isn't there an ayat in the Quran that goes something like 'when We take the universe by our hand.."
I don't think such speculations should be made based on this picture. When it refers to 'Allaah's hand' in the Qur'aan it shouldn't be imagined to be a human hand or anything similar to one.
Wa-alaykum assalam