Remove the hand, Remove the drawing that is in the middle of the brain and do not replace it with anything. Only remove the elements that divide the brain into four parts, but keep everything else exactly the same. It should look like a unified brain while preserving the original design as it is. Remove the excess green in the upper-left area. Add a very thin Psi (Ψ) symbol, sized to match the brain, integrated into it as if it were part of the brain itself in 3D.