Post-impressionist style still life oil painting of fruit

This unframed oil painting on board or canvas depicts a still life arrangement of various fruits on a shallow blue plate. The composition features a large, vertically ribbed yellow fruit, possibly a melon or squash, flanked by green and orange rounded fruits, with a smaller purple fruit in the foreground. The work is executed in a post-impressionist style, utilizing visible, rhythmic brushstrokes and a bright, somewhat pastel color palette dominated by pale blues, yellows, and greens. The paint appears to have a thick, impasto-like texture in certain areas, particularly in the highlights of the fruit. Regarding the artist, the user identifies this as the work of Onerva Borg, though no signature is clearly visible in the provided image to verify this claim. The piece shows visible age and wear, including a significant vertical crack or deep scratch running from the top center edge downward into the background, and some fraying and minor paint loss along the edges. The soft, diffused lighting and gesturally applied paint are consistent with mid-20th-century amateur or regional fine art. Without a legible signature or further provenance, this is attributed to a private or student artist pending further physical investigation.

Based on my visual analysis of the provided image, this work is a Post-Impressionist style still life executed with rhythmic, impasto-heavy brushwork. Per user submission, the work is attributed to Onerva Borg. Based on what I can see, the painting exhibits characteristic mid-20th-century aesthetic qualities, though I cannot verify the medium (board vs. canvas) or the presence of a signature from these photos. The valuation is heavily impacted by the visible condition issues, specifically a significant vertical crack or deep scratch and edge fraying, which suggests a need for professional conservation. Market demand for regional or private mid-century fine art is generally stable but modest. The provided estimate of $150-$400 assumes the attribution to Onerva Borg is correct and that the work is a period-piece produced by her. However, because I cannot verify authorship or provenance from a photograph, this must be treated as a working hypothesis. I cannot make an authoritative claim regarding the piece's origin; should the work be determined to be by an unknown amateur artist or an unattributed student study, the value would likely decrease to a decorative range of $50-$100. To confirm the identity of the artist and provide a more precise valuation, a physical inspection by a conservator to assess the structural integrity of the substrate and an examination under ultraviolet light to check for a hidden or faint signature would be required. Documentation such as family provenance or exhibition records would also be necessary to move beyond a hypothetical attribution.