It starts to look good but there are still a few elements that need correction. First there are some elements that repeat themselves (like the guy in white or the red cordon). Create a new layer (Layer > New > Layer) and use the Clone Stamp tool to remove the indicated spots. There are some additional glitches where the lines in the ground unite but I think the ball it’s looking pretty good as it is so I won’t spend any more time correcting it.
Make sure that you are on the original ball layer and Ctrl-click on it to make a selection. Press Ctrl + Shift + C to Copy Merged (copy all visible pixels, not only the ones on the layer we currently are).
Open the image “Apples” and press Ctrl + V to paste it. Name this layer “Metal Apple”. Make sure you save the image so in case your computer crashes your work will be safe.
Use Free Transform (Ctrl + T) and warp to fit the ball exactly over the middle apple. Don’t worry about the protruding stem (the little stick that connects the apple to the tree).
To make it look more realistic we need some texture from the original apple. Turn off the visibility of the metal ball layer and using the Pen Tool make a selection of the middle apple.
Press Ctrl + Shift + C to copy merged and Ctrl + V to paste the selection on a new layer. Because we only need the texture and not the colors desaturate the layer by pressing Ctrl + Shift + U. Change the layer blend mode to Overlay and lower the opacity to 40%. Move this layer on top and clip it to “Metal Ball” layer.
Create a new layer above all layers (Ctrl + Shift + N) and clip it to the layer below (the texture layer). Select a round soft brush tool and set it’s Opacity to 40%. Paint gently the edges of the metal ball. Change the layer blend mode to Multiply and further lower the opacity to around 60%. This step will add a bit of shading to the metal ball – I will call it metal apple from now on.
To further add some shading and get rid of the flat look of our metal ball let’s add Curves Adjustment Layer above all layers and clip it to the layer below. Drag the curve downwards to darken.
Click on the Curves layer mask and press Ctrl + I to invert the colors thus filling the mask with black. Now select a round soft brush and paint again at the edges of the metal apple to give it some 3D look. Take a look at my layer mask below for reference.
Now let’s make the little depressed area where the steam connects to the apple. In order to do this click on the background layer (the original one with three apples) and press Ctrl + J to duplicate. Move this layer on top of all layers (a handy shortcut for doing this fast is Ctrl + Shift + ]) and desaturate (Ctrl + Shift + U).
Change the blend mode of the layer you duplicated in step 17 to Multiply. Add a layer mask (Layer > Layer Mask > Reveal All) and fill it with black (press D to set default colors and Ctrl + Backspace to fill with Background Color). With a round soft brush at 100% Opacity paint with white in the layer mask to reveal the depressed area.