How should I understand XYZ姑娘?
Yes, you are right. It's a personification of spring and flowers respectively. With a little bit correction, &quot;們&quot; indicates that 花姑娘 is in plural form in Mandarin.
姑娘 usually means young lady in Mandarin. It is also a kind of addresses to Catholic nuns, female nurses, or female social workers in Hong Kong.
By the context of two sentences, it is personification of spring and flowers to some young ladies. This kind of personification is very common in Mainland China. It is acceptable to translate it in &quot;Miss&quot; as it is more common usage in English although &quot;Miss&quot; refers to wider age range. &quot;Lady&quot; is also acceptable, says &quot;Lady Spring&quot; and &quot;Ladies of Flowers&quot;.
For the context in mainland China, the male version is probably &quot;大哥&quot;. 霜大哥 means Elder Brother Frost. It is a bit younger. For Father Frost, it is presumably a senior male character and you might translate it to 霜伯伯.
先生 is quite formal. It depends on the context. Anyway, it is not the male version of 姑娘.
By the way, &quot;花姑娘&quot; means a prostitute who is working in brothel although it refers to China in the past.