To explain it simply, these are examples of what my main characters (still haven't drawn them yet) can achieve via soul alteration; changes the target to reflect the user. Requires a portion of their soul to do so. There lies the limit.
Mainly been trying to come up with a system to build this concept on, and I think I have enough of it to do so.
P.S Yes, I know this artwork is bad, just wanted the idea down.