Livesurface is a royalty free stock site which has a range of blank canvasses for you to paste your work onto.
For example this billboard image is a layered file which when you add your art work adds the lighting effects to make it look realistic without you having to put any effort in.
The images templates are high-res, pre-masked, multi-layered images with built-in 3D surfaces. They make creating finished photographic images from your artwork as quick as cut + paste.
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