Continued… How to turn a light bulb into a fish tank with careful adjustments and selections in this Photoshop tutorial
Now to give the water a blue tinge. Add a Curves adjustment layer on top and hold down Opt/Alt and hover the mouse between the curves and water layer and click when two circles appear. Select Red in the Curves dialog and pull down a touch with one point. Select Blue and push up about half as much with one point.
Next open up the fish image, Select All with Cmd/Ctrl+A and copy and paste into the working document as usual. Outline the fish with the Pen tool, creating a fake fin-like shape on the back fins that are cut out of the edge of the frame. Convert, feather and add a layer mask as previous.
Use Cmd/Ctrl+T to initiate a Free Transform and resize the fish to suit using the corner handles, making sure Shift is held down to constraint the proportions. You can adjust the angle of the fish by clicking and dragging just outside any of the corner handles. Click and drag from the middle to re-position. Drop layer opacity to 75%.
We’re going to increase the Saturation of the fishy a little to bring out his colour. Add a Hue/Saturation layer above the fishy layer, hold down Opt/Alt, hover the mouse between the two layers and click when two circles appear. Push Saturation up to about +20.
Next we’re going to lighten our fishy a bit two. Add a Curves adjustment layer, hold down Opt/Alt, hover the mouse between the two layers and click when two circles appear. Push the curve up with a single point to lighten.
Open up your second fish image (blue fish) and copy him across as previous. Mask him with the Pen tool, convert to a selection, feather and add a layer mask as before. Resize and reposition your fishy with Free Transform and drop his layer opacity to 50%.
Duplicate the new fishy layer with Cmd/Ctrl+J then flip the duplicate fish with Edit>Transform>Flip Horizontal. Resize and rotate the new fish to suit by using a Free Transform with Cmd/Ctrl+T.
To suggest that the first blue fish is in front of the bulb electrics, Cmd/Ctrl click its mask to load it as a selection. Now create a new layer above the bulb head layer, press S to select the Clone Stamp tool, set it to Current and Below, and sample with Opt/Alt from the clear area to the right.
Brush over the area inside the selection. Repeat this technique for the original goldfish to remove all the electrics from his body. Brush the wires into his tail on his own mask with black, so it looks like he’s jumping through. To place the second blue fish behind, select its layer mask, and brush out the black metal prongs with a black brush.
Open up your foliage image and take a selection of the width including the log in the centre using the Rectangular Marquee tool. Copy and paste across and use Free Transform to resize and reposition. Add a layer mask and make sure to brush out of the lamp base.
Now use a black brush to brush out all the black background and much of the foliage, leaving a few strands here and there to represent reeds. When you’re done go to Filter>Blur>Motion Blur and move the slider to suit to suggest blur from moving water. Drop layer opacity to around 50%.
To finish, add a Solid Color adjustment layer and pick a light blue shade. Move it to the bottom of the layer stack. Change the bulb head layer, the bulb base layer and the water bowl layer to Multiply blending mode to show more of the background colour. Drop the bulb head layer opacity to 50%.