If you are looking to showcase your ads in an outdoor environment to attract client, then this mockup is for you. It is a realistic mockup of double lamp post banner outside. The file is of a high resolution of 4515 x 3000 px and very easy to edit because it comes in PSD format. You can edit the shadows and lights in addition to adding your own artwork.
Thanks to Graphic Pear for this awesome mockup. Their website has a host of free and premium mockups, so check them out.