This is the detailed sketch of the main character. I used PS pencil tool to draw sketches. Always start with a big canvas, so that we can work with minute details. I usually work in a A3 canvas. You can download the sketch in high resolution from here.
The source image I used to create the battle scene. I used the head, body parts, sky and else is painted.
Download the high resolution of the stone face: HERE.
Check out all the entries in the stone face contest.
Now, mask out the parts from source image. We can see that shades and highlights are already there. I have marked the highlight parts in yellow, and shades in red.
I used the head from the source image as it is. Pen tool is the best fore masking accurately, I added a feather radius of 1.
short cut for feather is ctrl+alt+d
Masked out the parts from the source image. Which is going to be used as the character body parts.
Start placing the source parts. Remember to place it under the sketch layer.
Take the pen tool and delete the source parts that are out side of the sketch. Be accurate in this step.
This is the process how I added details for each body part.
1.Create a new layer with blend mode 'multiply' . Choose a small hard brush (2-4px according to the area) with a dark color (black or almost black), sketch the details.
2. Create another layer with blend mode overlay. With a white color I added lighting details.
3. For highlights, I created another layer with blend mode normal and placed it between the 'overlay' and 'multiply' layers. With a low opacity brush, using white color I added highlights.
Continue adding source parts on the character. Work on the top half.
More work on the stomach. Used the pen tool to get the shapes.
adding details on lateral side.
For making the helmet.
1. Create the shape using pen tool.
2. Created a new layer with blend mode 'overlay' for light details.
3. Created another layer in blend mode 'multiply' for shading.
Continued the same process to make the thighs and legs.
More detailing and shading.
The finished figure of character.
Painting techniques used here to make the background. I took a chalk brush and changed the opacity low and high alternatively.
This is how I made the ufo.
Also the details in background. I made two new layers. One in overlay mode for lighting effects and another in multiply mode for shading effects.
Here is the final result.