Sunflowers is an original Flute Duet with piano accompaniment.
Romantic style -It is in ternary form- D major outer sections with a barcarolle like middle section in G major.
The range of the flute is just over 2 octaves with the top note being F sharp which occurs just once in the outer sections.
Full score is 14 pages long and it is roughly 5 mins 15 in length. Intermediate level, but the full score is on the youtube link for you to judge.
Great for concerts, recitals, weddings, incidental music, or just something different to play.