Please help why my transparent background images got rejected

[Nikoletta3661981008wz]

Hello everyone,
I started to upload transparent background PNG illustrations and photos recently. I've got 95%+ acceptance on my normal photos and pictures but all these PNGs got rejected. Could you please help me what could be the issue? I want to learn.

Thank you,
Lia

[Jill_C · Accepted solution]

You do not have a clean cutout on the edges, which makes these unsuitable as transparencies.

[Nikoletta3661981008wz]

Thank you, this is helpful.

[Nancy OShea · Accepted solution]

For best results, artwork should be created on a transparent background from the start. 

[Abambo]

For removing the background of images, you need to work methodically and you will need a lot of time. Are you using Photoshop to do that?