There are few ways to do that. First way is to go to Google images and click camera icon.
And here are some other image search tips:
- Upload other versions of your image, especially if you’ve posted them online
- Create some variations of your image and then do a image search to see if someone is using a Photoshoped version of your work
- Upload different sizes of your image. You might get more search results
Google also has a nice advanced image search page that lets you search by image size, file type, colors, region and more.
Here you can click to install this plugin and new command will appear in your context menu when you right click on your image that will allow you to send your photo directly to a Google Images search.