UI suggestion for my own design [on hold]

I am developing a chrome extension where I planned to show the popup with current product details and user info. So, I already constructed the popup and decided what are the things are going to showcase. And I designed my own layout :)

But the final design doesn't looks good, doesn't make the attractive look. Even I am strong in the programming, nothing strikes in my mind about the UX design. Any one can suggest me to improve the look and feel (with good colors). Thanks...

[Note: not mandatory to follow the same layout, but just want to expose these informations]

I refereed some blogs also: https://uxplanet.org/chrome-extension-popups-design-inspiration-b38de2cbd589

If I want to convert this design to material look and feel then what are the standards I should follow. or anyone suggest me about the suitable color codes..