My DD bought a 3x4' painting on canvas by Ceffalio some time ago while on a trip. No info as to medium, probably oil, pastel hues. The paint is not thick, looks as though l-o-n-g sweeping brush strokes were taken with perhaps a pale cerulean or manganese, burnt sienna or terra rosa, a "cream" color, gray. Some burnt umber and magenta (at lower than mid point) are the only darks. All strokes are left to right with slight curves, sort of indicating sky and sea.
Problem: several lines have recently appeared. Most are perpendicular or on a slant, some darker, some broken. all less than ~3-4 inches. She's asked me to fix it. I could probably match (or come close) to the paint, but will these marks bleed through again? I really don't want to ruin it. I've googled the artist, but what I see on a few sites this fellow probably did not do this piece. What would you do?
Here is a photo of the area--upper left of center:
Problem: several lines have recently appeared. Most are perpendicular or on a slant, some darker, some broken. all less than ~3-4 inches. She's asked me to fix it. I could probably match (or come close) to the paint, but will these marks bleed through again? I really don't want to ruin it. I've googled the artist, but what I see on a few sites this fellow probably did not do this piece. What would you do?
Here is a photo of the area--upper left of center: