It gets blurred and brightened
Looks good, personally I would have toned down the brightness so it does get brighter, but not as much as it does now.
I would also gaussian blur it a little more. (or any blur really..)
For the logo, I think the text looks more HD than the actual logo, so maybe you need to enlarge the logo in a image editing software (possibly a canvas of 1000x1000) and recolour each of the pixels. (Just enlarging it won't work as the image is probably not a vector, therefore it doesn't keep the quality.
In the end, a 1000x1000 image will look more HD than a 500x500 since there is more pixels leading to better definition.
You don't need to do either of what I said, but that would be what I would have tried to do.