Realistic Graffiti

For this picture to be realistic we need a realistic graffiti wall . So let's find one . I found this background on Google .First you need to select a font to write your text . I found a list of graffiti fonts here . After you installed the font just write the text on the background in Adobe Photoshop . Your image should look like this :
Now add some colors. Create a new layer ( Shift + Ctrl + N) , move the new layer below the layer where you wrote the text , create a rectangular shape with Rectangular Marque Tool ( M ) and add a gradient like in the image below .
Now your image should look like this :On the layer where you added the gradient , pick the Eraser Tool ( E ) and delete the parts from the gradient which you don't want in the image. The image will look like this :
If you don't like how the text look like , go back on the layer with the text and add some effects . I added from Blending Options ( Right click on the layer - Blending Options ) Drop Shadow and Gradient Overlay . I added some photos with the options i used :
For the graffiti to look realistic , set the Layer mode to Hard Light . Your image should look like this :I think the image is a little bit "empty" so i added something . I fount on Google this picture :

It's simple to add this picture to the graffiti . I opened the picture using Photoshop , from Select-Color Range i selected the white color , then i selected the opposite of the white color with Select-Inverse or Shift+Ctrl+I . Copy the selected area (Ctrl+C) then Paste it on the graffiti (Ctrl+V). Set the layer mode to overlay and the image is ready :D
I hope this tutorial will help you . If you have any question just post it below .