Let's make a car illustration in Photoshop. Just follow this tutorial and you will get this beautiful result in less than 10 minutes.
Create a Background Layer
Create a new layer and fill it with color white. Call this layer Background.
Add one of these free Car Silhouette PNG images in a new layer. Go to File > Place and choose a car silhouette. I used the "car-silhouette-2.png" from this pack.
This pack also contains car brushes, car shapes and car PNG images.
Press Shift-Control-Alt-E to merge the two layers.
Pick the Magic Wand Tool and check Contiguous. Then click on the white background (top left corner) to make a selection.
Press Shift-Control-I to invert the selection.
Press Control-J to make a copy and call it Car Shape. Move this layer below the Car PNG 2 layer.
Delete the Merged Layers layer.
Illustration Coloring in Photoshop
Learn how to color a scanned drawing in Photoshop or how to color lineart in Photoshop in just a few steps.
So, we now have three layers: the background, the car shape and the car silhouette. First add a Color Overlay to the background layer using any color you like. I used the color #ffaf32 for the background.
Add a new layer above the Car Shape layer and call it Coloring. Right click and choose Create Clipping Mask.
Use the Brush Tool and a hard round brush to color the car illustration.
Add Drop Shadow
Let's add a Drop Shadow Photoshop effect.
Press Control-J to duplicate the Car Shape layer. Rename the Car Shape and call it Shadow.
Press Control-T and resize the shadow.
Add a Color Overlay layer style using the color #624820 for the shadow.
Car Illustration in Photoshop | Final Result
So, here is the final result for the car illustration. You can use different color tones for the car illustration.