Jean-Michel Folon (1934-2005) was an artist that worked in New York, Belgium, France and Monaco.
He was an illustrator, sculptor, painter and set designer. From the photos you added, these look to
be original watercolors. I am also a watercolor artist and the clean edge is created by using an artist's white tape
on those edges while you paint. When the painting is finished, you can remove the tape without tearing the paper and you will have a nice, crisp edge. Your photos were cropped really close, so I am unable to see if he signed OUTSIDE the image in addition to the signature inside the image. If he did, then it is a print (a print would have numbers like 123/350 in pencil on the lower left outside the image as well) on high quality paper and each piece would have a value of $300 to $400.
If the only signature is within the artwork image, these are original watercolors and not prints and each painting has a current value of $2300 to $2600 retail.
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