The difference is clear. Left I took a new screenshot and pasted it over the exact same image.

Closer look:

Here you can see what is causing the blur:

And without the compression artifacts:

However, you’ve just provided even more evidence to the root of the issue. People are ignorant to what decent quality looks like. The image would be even better if it had a higher resolution than 480x480.

Here’s a new version at 708x708 as an example