Why not make a simple block pattern in batiks of blue-greens and then applique the motifs from the first fabric onto it. Use the second fabric as the border. A sort of sandy beach next to the sea type of coloring with the beige/warm tone bordering the blue-green ocean appliqued center. That way all the emphasis would be upon the theme and motif of your fabrics and the pattern of the quilt would be secondary and stay in the background.