Model: http://www.psdbox.com/wp-content/uploads/2010/12/Faestock.deviantart.com_.zip
Background: http://fenne-stock.deviantart.com/art/Ach-fields-126159303
Grass brushes: http://archeleron.deviantart.com/art/My-Grass-Brushes-82240003
Step 1
So, open the model stock image and use the Pen Tool (P) to draw a path around the model.(activate the paths option on the top options bar). Once you closed the path, with the Pen Tool still selected, right click and select the option Make Selection and set Feather to 0.
When the selection is loaded, delete or mask the background. You can invert the selection in Photoshop with the shortcut Shift+Ctrl+i. If you created a Layer Mask and its inverted, you can invert it with the keyboard shortcut Ctrl+i. This is how my subtracted model looks like.
So, open the model stock image and use the Pen Tool (P) to draw a path around the model.(activate the paths option on the top options bar). Once you closed the path, with the Pen Tool still selected, right click and select the option Make Selection and set Feather to 0.
When the selection is loaded, delete or mask the background. You can invert the selection in Photoshop with the shortcut Shift+Ctrl+i. If you created a Layer Mask and its inverted, you can invert it with the keyboard shortcut Ctrl+i. This is how my subtracted model looks like.