Large Oil Painting on Canvas

We need an ultra realistic oil painting on canvas measuring 70 inches by 50 inches. We want the mail focus to be very bright and colorful flowers and lily pads with some animals around a beautiful water hole with a snow mountain in hazy focus in the background. We want a style similar to David Langmead in detail and design. While being realistic, we like to see patterning and some paint layers, perhaps in an impasto look. We are not interested in digital art, only hand painted originals.