Create a minimalist and abstract coastal landscape painting in the style of gouache or acrylic, using soft, flat, and matte colors. The composition should include simple geometric shapes and organic forms representing nature, like trees, houses, mountains, and the sea. Use earthy tones. The overall texture should be smooth and soft with no sharp details, focusing on calm, serene, and balanced compositions. The style should evoke a modernist and minimalist aesthetic, similar to the works of artists like Henri Matisse or Manuel Monge, with a focus on simplicity and tranquility.