I would definitely suggest you look up tutorials. The stock is stretched. All you really did was what these two posts above me said.
Working with stocks, in my opinion, are harder to work with. Try working with renders.
Lastly, the text isn't good. If i'm right, you blurred the text so it can fit in(that's what I infer).
When working with text, you don't want it to stick out next to a render, or BE your focal point. You want people to search for the text, not have it popping out immediately. But don't overdo it; don't make it so small that they have to squint to see it.
There is much room for improvement.