Korean name will be Karen. Names don't translate into Korean because their roots are different. However, you could create your own Korean nickname and/or use the romanized style of the name.
아르와
창원
The word "lily" in Korean is written as 백합 (baekhap).
I guess your talking about Korean boy group singer beast. You write like this: 비스트
taekwondo is 태권도
내 가족 My family
영어 (yeong-eo)
임창원.
It would be written as 안.
신디 That's cindy.
As in the name Seth? Because there is no 'th' sound in the Korean language, you would have to write 셋, which is pronounced as set, and it also the same word as 'three' in Korean.
In Korean, the name "Sean" can be written as 션 (pronounced as "sheon") or 션 (pronounced as "seon").