Hi everybody,
I ve a little issue and I m not so sure how managing it.
I designed in illustrator a business card; the front side has just one spot color background- a pantone coated.

Later, I designed like clouds on this background: I drew them in photoshop, using watercolor brushes. I saved them in a transparent tiff file and imported in illustrator.
so, now i have two levels in illustrator: in the first the pantone background, in the second the clouds.
the clouds are just white, i didnt use other colors. They work like gradient.

but now I m not so sure is the best way to do it, and I m afraid could be printed with unexpected results.
what is the best way to do it? Better doing everything in Photoshop? Different layers could represent a problem for the printer?
I asked the print shop but they didnt seem so sure about it.

thank you so much!

mau