Dear Madam Wanlaya!
We kindly ask you to apply to your supplier of pictures with a request to provide a detailed specification (requirements specification/draft proposal) of the picture,
as in the invoice is missed a detailed description of the picture (what stones the picture is made of, what material/fabric the frame is made of and what stuff was used for frame coverage).
These data are required by customs bodies for going through declaration procedure.
Thank you very much & best regards,
Lenar Sayfutdinov