Simple cleanup of edge in the original also cut the face out and set it aside for later.
step 2 of 9
Took the green edge and distorted it to be more of an arch.
step 3 of 9
Copied piece and flipped it tweaked them a little and gentle erased the overlay to have them blend.
step 4 of 9
Copied the arch and set behind and distorted to add size and depth to arch. Repeated a few times.
step 5 of 9
Took original arch and distorted and flipped it to use as background piece and repeated it a few times and set on top of each other.
step 6 of 9
Introduce the original clock face behind the other pieces and adjust and trim as needed to fit and look right
step 7 of 9
Softened and darkened the face to fit into being in a covered situation. Then added the face shading, using different grays painted on in Multi mode and blurred to soften them
step 8 of 9
Here added the background started with flat black and then used Starbrushes from keren-r at Deviantart.com
step 9 of 9
Finally added some dark soft lines to the outer steps for more depth, added darker face to arch and then added a highlite layer over that and softened it. and last made the reflected lite on glass face of clock.