[3] Right click select make selection, create a new layer fill the selection with #ce221e, do not “D” select.
[4] Take the “Burn Tool” Create the following shading with Burn Tool.
[5] Take the “Dodge Tool” then Highlight the following Parts like as shown below.
[7] Duplicate the the shape layer, and place it like me.
[8] Choose Elliptical Marquee Tool, and set properties like this.
[9] Create a new layer, Ctrl+Click on this shape layer to get selection, then create a shape like this.
[10] Go to Select>Modify>Feather radius 1px.
[11] Fill the selection with white color.
[12] Create the following selection with the help of Pen Tool.
[13] Fill that layer with #899b2f.
[14] Take the “Burn Tool” then highlight the following parts like as shown below.
[15] Now make a new layer, create a shape with Elliptical Marquee Tool fill the selection with Black.
[16] Change the Blending Mode to Soft Light.
[17] Duplicate that layer and place it like me.
[18] Take the Pen Tool create a shape like this.
[19] Now right click select the make selection, create a new layer fill that layer with #7c8e20.
[20] Take the “Burn Tool” then Highlight the following Parts like as shown below.
[21] Take the “Pen Tool” create a shape like this.
[22] Choose Brush Tool to and set properties like this.
[23] Set the foreground color
[24] Create a new layer now take the Pen Tool again right click select Stroke Path use these setting.
[25] Repeat above step (create new layer, change the Brush size, create a shape pen tool select stroke path).
[26] Choose Brush Tool to and set properties like this.
[27] Now play with your brush tool.
[28] These are my final results.