I don't think so. The doujin circles from Malaysia often bring their stuff straight across from the causeway to our conventions.
Picture books aren't as long as they are not direct reillustrations because fan illustrations are supposed to be personal creative work. But then again in Singapore, we do not have a comprehensive or even proper copyright law other than the 70-year one, the rest are either unenforcable or complete junk.
You should have landed in Malaysia and shipped the stuff across the causeway from there.