Colorful Swiss landscape signed O. Leu and dated 1960.
Yellow fields, and red-roofed houses, with mountains in the background.  We are not certain of the location, but the low lying hill to the right reminds of the Saleve near Geneva, so this may well be a landscape from  Lake Geneva area.
Painted in a colorful post-Impressionist style.

View of a Canal in Venice
Soft blues and rose tones in shimmering summer sunlight.
A native of Venice, Italy, Franco Dei Rossi trained at the Accademia art school in Venice and developed a signature style of soft-focus impressionist cityscapes of Venice.
Oil on Canvas mounted on wood.  Signed lower right
70 X 59 cm

A village on the Costa Brava by Swiss Artist Fritz Ryser.

Basel native Fritz Ryser was a painter and an art teacher known for his murals, illustraitons and lithographs including landscapes, stillives and portraits.