September tourist route: Lanzhou-Dunhuang-Jiayuguan-Zhangye-Qilian-Xining-Qinghai Lake-Xining. Is this route reasonable?

In July, I drove from Lanzhou-Xining-Qinghai Lake-Qilian-Zhangye-Jiuquan. If we take this route now, Dunhuang is the Mogao Grottoes, Mingsha Mountain, Crescent Spring, Jiayuguan is the Great Wall, and Zhangye is the Danxia landform, the Great Buddha Temple, the Military Horse Farm and Qilian. If the scenery is good and the sightseeing along the way is good, it is all natural scenery. Besides the lake, Qinghai Lake is a rape flower. It depends on whether you are with a group or go on road trip. Personally, I think the natural scenery from Qilian to Qinghai Lake is better! You can feel the vast grassland and diverse ethnic customs under Qilian Mountain, which is fascinating. This is just my personal opinion, hehe. Hmm! That's all! Give a good one if you think it's appropriate! Ha ha! Have fun! Oh, by the way, you'd better take a thick coat. After entering Qilian, it will be very cold because of the altitude.