Make sure every layer in that group is on clipping masks so they don’t come out of the central shape.
To to give a touch of class to the button edge, you can refer to steps 9, 10, 11 (creating edge highlights) and using the same technique add a bit of light to the bottom left part.
Keep in mind that now you can duplicate the whole group of layers (Ctrl+J) and place it elsewhere to make more buttons. The only thing you need to do is just to change the type.
Open image of speaker, extract it using Magic Wand Tool (W) and drag it somewhere in our illustration.
Next hit Ctrl+U (Hue/Saturation) and set proper values to Reds, Yellows, Cyans and Blues.
Now grab Elliptical Marquee Tool (M), hold Shift and draw a nice circle around the membrane.
Then hold Alt and draw another circle to exclude the center of the speaker. We only want to have the membrane selected.
Hint: To move the selection while drawing it, use Space bar on keyboard.
Example: if you want to exclude the central part from the current selection, hit Alt (exclude) draw a selection circle, now if you want to move it – still hold Alt but aslo hit and hold Space bar on keyboard – now you’re able to move/reposition the selection, until you drop the Space bar.
When you’re done, go to Layers Palette, pick Hue/Saturation. This should automatically get into shape of your selection. Then adjust it as shown below and hit Ctrl+Alt+G for clipping mask.
Now recall that selection again.
While having this selection active go to Layers Palette and now select Color Balance. Again it will auto fit the selection masking out everything outside it. Hit Ctrl+Alt+G for clipping mask and apply the same values as shown below.
Now create another layer on the top, use clipping mask – Ctrl+Alt+G. Change its blending mode to Soft Light and pick light yellow color #ffed9a. Then select Brush Tool (B), set its Opacity to 100%, Flow to 5% and Hardness to 0% and paint (as indicated) to cast a bit of light.
Repeat the same process as in previous step, but this time use new layer with Overlay blending mode and paint with white color. This should stregthen the effect.
Merge all the speaker layers into one (select them all and hit Ctrl+E) and duplicate (Ctrl+J) it 3 more times. Then position it as shown below.
Next grab Rectangle Tool (U) and draw a big dark grey (#2d2d2d) shape from below the buttons to the very bottom of the canvas. Lower its Opacity to around 80%, so it look something like the image below.
Next go to Layers Palette and create a new layer group, name it “fabric”. Recall the selection by holding Ctrl and leftclicking on the shape layer’s thumbnail. Then click on Layer Mask icon in Layers Palette (as indicated below).
This will automatically mask out everything that’s not in our selection. And now everything you throw into that group will only affect that area of our selection. So first put that grey shape layer in that group.
Remember that we will be working in that group now, so make sure you put everything inside there. Now open the fabric texture, put it in “fabric” group. Set its Opacity to 80% and change the Blending Mode to Screen.