Advanced blending in photoshop requires a technique of blending two or more images together into one image. First you have to choose your images like in the one above where the wood texture has been blended in with the models face. There are a few different ways to blend images together one of which is accessing the blending options which will bring up a layer style dialog box set to the blending options, there will be "blend if" sliders and dragging the black and white into the middle will blend the layers, you can smooth out the blending by splitting the slider bars into two parts then drag the two parts until you are happy with it.
Content aware scaling
Content aware scaling is about stretching an image out without effecting the main subjects in the photo. First you open your chosen image and click on the crop tool and drag it over the image, then extend the canvas to fit using the rule of thirds guideline. Next you will click on edit - content aware scale and size the image to fit, if any of the main subject in the image happens to have stretched you can undo what you have done and use the laso tool to draw round the subject you don't want to be altered, convert the selection into a channel then deselect and go back to edit - content aware scale. There will be an option at the top to protect your chosen layer, once applied extend the image to fit but this time the subject won't have moved any. If in the background there are bits that are stretched you can also use the patch tool and move to selected area to cover it up.
Channel Cut Outs
Channel cut outs can be tricky to do when what you are cutting out is difficult like hair for example. There is a few different ways of doing this but one of the ways I use is by firstly duplicating the layer so if you make any mistakes you can always go back and you are editing the duplicate. Click on select then colour range on the drop down menu and a box should pop up, move the slider til the image has went black. Next switch to the channels selection and save this layer as a channel, the image should now go black and white with the black being the areas that need to be kept and the white areas are the ones that are to be discarded. Next choose a black hard edge brush and paint in the areas that are to be kept and a white brush for the areas to be discarded. Open the layers palette and select the working layer and add a layer mask and if there is still areas that need touched up you can repeat the process.
Colour enhancements on an image can be done with adjusting the vibrance and saturation but to do it a more advanced and proper way. First select the area you wish to work on using a lasso or selection tool if you want to do specific areas separately, then add a photo adjustment layer and select photo filter which will pop up a photo filter box, the selected part of the image will be the only part of the image affected unless you have chosen to edit the full image in one, in the dialog box a list of different colours will come up and you can select which ever one you want to use. If you have edited parts of the image separately then just select the next part of the image and repeat the process.
Clone stamp is used for cloning to remove parts of an image you don't want in it or even duplicating parts of it for example if people have walked in front of the main object you wish to photograph or if theres unwanted street signs etc. First open up your chosen image and from the tool box select the clone stamp tool and set the tip size. Next drag the clone tool to the part of the image you wish to clone and hold down the alt key and click the mouse and paint with the copied pixels. If you deselect the aligned option it puts the cloned area back to the original location overtime you release the mouse.