If I'm taking a picture I hate having the ragdoll ruin it. Is there a setting or command I can do to not show the ragdoll?

Depends on which "ragdoll" you want to hide.

Type /opt uke 0 to hide Uke.
Type /opt uke 1 to show him again.

Type /opt tori 0 to hide Tori.
Type /opt tori 1 to show him again.

Or, you could type /set engagedistance 2000 to make him far away from the tori.

which ragdoll?is it the ghost?

Firebolty already solved this you guys.

Isn't the rag-doll the ghost?
Press "B" to get rid of it.

Now we can rest assured that the question is solved ;)

ahem... with /set uke 0 he only gets invisible butto set engagedist 2000 works