The image showcases a charming architectural detail characteristic of the Art Nouveau style with clear influences from Antonio Gaudí's work. This is a rounded portal or niche executed in mosaic technique with rich floral ornamentation. The structure is built into a brick wall and features a vibrant palette of green, pink, orange, and blue elements.
The base of the portal is constructed from stone blocks of various shades, creating a solid foundation for the more decorative upper section. Compositionally, the portal presents as a semicircular arch framed by a wide mosaic band in yellow-orange. Surrounding the arch are stylized plant motifs — flowers with pink petals and green leaves, executed in the characteristic "trencadís" technique (broken ceramic tiles).
The inner part of the arch is also decorated with mosaics featuring small blue flowers, with a wooden door visible in the depth. The contrast between the decorative bright mosaic and the austere stone blocks of the base creates an interesting dialogue between fantastical ornamentation and functional construction. This architectural element is an excellent example of how a utilitarian object can be transformed into a true work of art.