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Ok well I only used pixlr as i'm in the progress of getting Photoshop and I got the Hearthstone logo and the Murloc background of Google images.What program did you use and also I think you should use a different font. Also you should put more elements into it because it looks like all you did was download a pic off the web and add some text. You should spice it up by brushing it or even adding multiple pictures onto it.
Here is the first thumbnail I have ever properly created, let me know what you all think. View attachment 15635