You're not talking about your last name. . .
空姫そらひめsorahime
空子あいこaiko
Korayuki, Sora Yuki, Sora Yuki, Sora Yuki そらゆきsorayuki
Sora Miki, Soramiki そらみきsoramiki
空絵そえsoe
These are all names. Japanese people are very free in choosing names, such as Sora or aku or ku can be combined in any way, as long as it makes sense to you.
For example, I know someone named Pikachu.