Hello! Amazing artwork you have there! Thanks for uploading. I've had a look at your website and you have released the clipart with a licence which is incompatible with the Public Domain licence that all clipart on the Open Clipart Library uses. You have released these as "free for non commercial use" on your website, but OCAL uses Public Domain.

You might like to consider either, releasing the OCAL cliparts under Public Domain (free for any use including commercial) or, if you wish to stick to the "non-commercial-only", then I suggest you remove them from the OCAL. In any case I suggest you make sure which licence you are releasing the clipart under.

Thanks, for reading, I hope you choose the option you are most happy with. (And I hope they are able to remain on OCAL :-).)

Please also consider cropping according to the guidelines : http://openclipart.org/wiki/Guidelines