Mexican Sunflower

I was told once that this flower is called a Mexican Sunflower. Not sure if that's actually the case but anyway, when they are in full bloom they look very bright and happy. There's a bunch of them growing down by the lake near here and I picked one of the last ones of the season yesterday morning. It was looking a little tired this morning but I decided to go ahead and paint it anyway. Half way through mixing the colours I suddenly noticed it was starting to droop alarmingly. So I quickly put colour here there and everywhere. The yellow would stick to the canvas properly (cheap student paints!) and it all seemed to be a bit out of control. Well anyway, here it is...