The item (and I say "item" because I don't know if it's a print, lithograph, etc.) is signed Ronald Julius Christensen. I havent found anything exactly like it so I'm assuming that it's an original, if it's authentic. It's behind plexiglass and measures approximately 28" x 35".
28" x 35"
Hello, this item is a signed work by Ronald Julius Christensen (1923–1999), an American artist known for his vibrant still lifes and semi-abstract floral compositions. The piece, measuring approximately 28 by 35 inches, shows a bouquet rendered in fluid, expressive strokes with vivid colors and open contour lines typical of Christensen’s mid- to late-career style. His work often combines watercolor-like transparency with strong compositional rhythm, creating a sense of spontaneous energy. The signature visible in your photos appears consistent with authentic examples from his documented prints and mixed-media works.
Christensen’s works were distributed through fine art publishers in the 1970s–1980s, and many were issued as limited-edition lithographs on paper, sometimes mistaken for originals because of his painterly technique. If the surface shows no raised texture from paint and appears smooth under angled light, it is likely a lithograph. Originals with acrylic or gouache application carry higher value. Depending on condition and whether confirmed as an original painting or signed lithograph, its current market value ranges from USD 300 to 800, with framed examples occasionally achieving more in U.S. regional auctions or design-oriented galleries.