Added a Curves adjustment layer and a hue/saturation adjustment layer.
step 4 of 17
Used the elliptical marquee tool to create a circle, then give it a white-to-transparent gradient, and cut the back of it to create appearance that the globe protrudes from the ship.
step 5 of 17
Used pen tool to create a selection, then gave it a white-to-transparent gradient again, to emulate fading light. The lowered the opacity of the layer.
step 6 of 17
Cut one of the spikes from the original image, and duplicated and rotated it to create the propeller.
step 7 of 17
Set it behind the ship layer, then gave it a radial (spin) blur of 20 px.
step 8 of 17
Used pen tool to create selections for each of the colored lights, then added a gradient (color-to-transparent) for each color, so that it looks like the light is emanating from the "crease" in the ship.
step 9 of 17
Each red light is just a small red dot (small brush) with outer glow and slight bevel/emboss. The highlights on each spike were created by adding a gradient to each selection, as with the other lights.
step 10 of 17
Used pen tool to cut out mermaid from background.
step 11 of 17
Placed her in image, scaled her down, then added a hue/saturation adjustment layer to make her purple.
step 12 of 17
Added separate layers for shading under mermaid, as well as shading on her body (light source is behind her), as well as general shading on the ship. Just used a large, soft brush with black, at 30% opacity.
step 13 of 17
Added bubbles from spikes, mermaid/ship, and propeller. Bubbles are a white, small hard brush with bevel/emboss, with the settings as shown. Also note that there is an outer glow, and that the fill is set to 0% on the layer blending options
step 14 of 17
The result of the bubbles is this.
step 15 of 17
Added plants on 3 different layers using brushes (see link for brushes). The gave each various layer styles (bevel/emboss, etc)
Added some sun-streaks in front of the ship and mermaid by using pen tool, then stroking the lines with the brush (soft, small brush with white), then colorizing them by adding a hue/saturation adjustment layer, and reducing the opacity to 28%