In fact, the meanings of Qing, Dan and Lan are not much different, but we must consider the problem of flat pronunciation of the name, as well as the stroke and signature design of the name, otherwise we will not be able to choose a good name that is not catchy and easy to sign.

Yi Dan and Yi Qing cooperate well in meaning, but Yi Qing's pronunciation is not catchy, both of them are flat and smooth, and their sounds are circuitous, while Yi Lan's meaning is good (Lan Xin Hui people's quality), and his pronunciation is catchy, while Yi Lan is more likely to write fluently in signature design, because there are few strokes in the middle, and it is not easy to design words with too many strokes.

I hope I can help you.