Check out My other account Xsereneix for my art
http://xsereneix.deviantart.com/
Here is some of my Artwork, I used A LOT of the stock images on this account "XsereneixSTOCK" to enhance some of these pieces. Some of the stock images I will be uploading are absolutely important when it comes to detailing these digital paintings whether you make a brush out of the textures, or directly apply the textures to the paintings.
Using textures/stock photos will greatly enhance your work.
Check these examples:
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http://fav.me/d5d4lhv
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http://fav.me/d5cgbza
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http://fav.me/d56f5j6