Who composed this score? Random image of a score found in Pinterest

Yes, sounds like a sad theme from a visual novel or maybe turn-based JRPGs. I'd imagine it'd be played on piano although there might be slow string chords accompanying it or maybe an oboe could play the melody line, so something with similar instrumentation to Dragonspine/Stormterror's Lair slow themes from Genshin Impact.

I'm very interested in the full piece even from the one page, if I continue off this piece made by an unknown composer/unknown copyright, is it against Musescore's rules to even upload it here? So the first page will be kept intact but there would be a continuation made by yours truly.