You Want This:
To Look Like This:
Or This:
Or This:
Or This:
SCREELY
TRANSPARENT BACKGROUND
Download The File and Play with other options!
I got to know about this online app through @Steemhunt. Screely - Instantly Turns screens/designs into beautiful images. You can easily convert your sad screenshot to fab. Dumb to Bomb! Very simple and classy.
If your file size turns huge after screelyfying then you can use https://tinypng.com/ to cut it down.
Use https://www.canva.com/ for graphic design needs. They have a design school too.