The old one looks too complicated and detailed. You loose the impression at a distant glance. I would drop the 3d and shading on the S. Keep the S in brighter color. Add the new handshake in the background and drop the blue and red swirl around the outer ring. Drop 3d and shadow on the ring too. I would keep the S just a teeny bit more elegant ( like as if it drawn with an ink pen or a quill . It brings movement to it). Use black outline but drop black background. Consider light colours and outline with darker ones. Thank you!