Acrylic painting signed 'S Underdown'

This is a hand-painted acrylic artwork on a stretched canvas, depicting a large steamship resembling the RMS Titanic cruising on a calm blue sea beneath a vibrant aurora borealis sky. The physical composition features a dark hull with rows of yellow portholes, a white superstructure with illuminated windows, four ochre-colored funnels venting dark smoke, and rigging masts extending upwards. The sky is a dramatic display of purple, green, blue, and brown hues simulating the northern lights, dotted with white speckles representing stars. A small red flag is visible on the stern. At the lower right corner, the painting is signed in white paint reading 'S Underdown', and near the bow on the hull, text reads 'RMS TITANIC'. The canvas appears to be in good overall condition with visible textured brushstrokes throughout, consistent with contemporary amateur or hobbyist fine art. The attribution rests entirely on the legible signature at the lower right corner and the text painted onto the hull. The work is unauthenticated and represents a modern decorative piece rather than a historically period artifact.

Based on what I can see in the provided image, this is a hand-painted acrylic artwork on a stretched canvas depicting the RMS Titanic beneath an aurora borealis sky, bearing a signature reading 'S Underdown' at the lower right corner. The painting displays visible textured brushstrokes and appears to be in good overall condition. I can't verify from a photo whether the materials used are of archival quality, nor can I evaluate the canvas tension or minor surface imperfections without physical inspection. The attribution to S Underdown rests entirely on the visible signature and hull text, which I must treat as a working assumption rather than a confirmed identification, as visible markings can be misleading or applied by hobbyists. The basis for the value estimate places this piece within the typical market range for contemporary amateur, decorative, or hobbyist fine art. Demand for such decorative maritime paintings is generally modest and driven primarily by thematic appeal rather than secondary fine art market investment. To move beyond an unauthenticated estimate, an in-person examination by a qualified fine art appraiser or expert would be needed to evaluate the execution quality and materials. If this piece turns out to be a mass-produced replica, a generic copy, or unattributed decorative work rather than a unique studio painting by the named maker, the market value would likely drop to the lower end of the decorative goods tier, roughly $30 to $75.