Design an illustration titled 'Rostros de Valores' featuring a single face that embodies a blend of racial characteristics, symbolizing diversity and joy. The face should express happiness and positivity. Surround this face with vibrant Colombian plants, such as orchids and heliconias, in shades of green, aqua green, and bright oranges. Include hands reaching out from the foliage, symbolizing construction and support. The scene should convey a sense of lively celebration and unity, blending the elements of diversity, joy, and the richness of Colombian flora.