Improve image resolution - repost

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
Actually i have a logo designed by myself. It is very simple. but i need more resolution because i have to print very huge papers (shop sign). In addittion this logo has to be improved because maybe i missed some pixel....this project is very easy. The file have to be provided in different format and file extension. You can adjust this file or to do another one. I have only GIMP software. So, don't provide me photoshop or adobe file. i need just PNG (trasparent) and JPG. For the PNG transparent IS ESSENTIAL.
I will give you the file after your bid. Thanks!

Skills required:
Banner Design, Graphic Design, Logo Design, Photoshop
About the employer:
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