For both submission I do have vector files. Though the second one since there's little time left, I did utilize a commercially available one with a license and added my own changes to it. Vector files can be resized without having any loss in quality.
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You are disappointing me mate. Yours were my fave to win the contest. Don't come up with that excuse. Of course if you have a license you will get the vector file too from the website and you are free to edit it.