Reminder: If you've already gotten a tree photo pictured in your mind, you might want to narrow down your search. To do this, try looking up a specific type of tree. If you have no idea what this tree in your head is called, try searching a general description to find your tree photo (e.g. snow tree).
Did you see?: To your far right, you'll notice a side bar of Royalty-Free images by iStockPhoto. Feel free to browse through these tree photos in search of the one that best suits your needs. You can buy these files using iStock credits, which are better explained when you click on one of the images.