I don't like how the focal is stuffed in a corner, and you have these nice effects in the rest of the tag. But I also don't like the idea of you centering the focal in a tag this size so that composition would be better. Even then, it wouldn't be so great. So what I would reccomend is that you make the canvas larger on the right side (like, make the dimensions 400x182 or something) and start filling that space with much darker but similar effects as you've done on the left. And then get rid of the text, and I think it'll look a lot better. :D
The darkness of the render will work well if you make it work well. So, make sure that the side that's shaded (the right side) is very dark, but also make the effects distinct.
Avatar: In memory of ieatwyverns <3
Thank you, Vasco <3