Rejected due to image quality

[Shapo.]

Nice to meet you.These illustrations have been rejected due to "image quality".

What should I fix them?

By the way, these two have been adopted.

[Test Screen Name]

What is the original? Is it designed on the computer or scanned/photographed from a design on paper? If on paper, do you have the original or a printed copy?

[Shapo.]

Thank you for your immediate comment.

They are scans I drew on papers.

I don't have the original of the first illustration.

I have the original jpeg data.

[Shapo. · Accepted solution]

They were adopted after adjusting the brightness and contrast.It's strange to give myself the right answer, but I hope this experience will help you.Thank you.

[PaintedKitty]

Very nice illustrations. 😊

[Shapo.]

Thanks so much! Please take a look at my portfolio. I'll continue to do my best!