Oil painting depicting an arcade of arches

This is an oil painting on canvas presenting an architectural composition that features a receding perspective of stone or masonry arches and columns, reminiscent of a cloister or ancient interior hallway. The physical characteristics include a muted, monochromatic color palette dominated by earthy tones, ochres, browns, creams, and grays, creating a moody and atmospheric quality. The application of paint is textured, with visible brushwork and impasto highlights defining the stonework and reflective floor surfaces. There is no visible signature or maker's mark on the front of the composition. The artwork is housed within a dark wooden frame featuring a thin inner gold-toned fillet. Regarding the provided context, the user-supplied notes attribute the work to Onerva Borg, dated around 1981, and note that it is unsigned with dimensions of approximately 55x45 cm; however, this user-supplied attribution is entirely unverified. The painting exhibits characteristics consistent with late 20th-century amateur or regional fine art exploring architectural themes, showing minor surface dust consistent with age, but no apparent major structural damage, tears, or repairs visible in the current state.

Based on what I can see in the provided image, this is an oil painting on canvas measuring approximately 55x45 cm, depicting a receding perspective of stone arches with a textured, impasto application and a muted palette. Per user submission, the work is dated around 1981, is unsigned, and carries an unverified attribution to Onerva Borg. I cannot verify this attribution from a photo, and the lack of a signature means an in-person physical inspection by a qualified fine art specialist and provenance research would be needed to explore potential authorship. My estimated value range of $300 to $600 assumes the hypothesis that the attribution to Onerva Borg is correct and that the materials and canvas are consistent with the late 20th-century period. General market demand for regional or amateur architectural fine art of this scale is relatively modest. If physical examination reveals the work is merely a copy, a reproduction, or created in the style of the referenced artist rather than being an autograph work, the market value would likely decrease significantly, typically falling into the $100 to $250 range. To establish a stronger valuation, one would require physical inspection, documentation of provenance, and expert consultation to evaluate the handling of the medium and the integrity of the canvas.