I liked the first one; it was absurd and awkward and used the look of the characters well. The second one drew out the idea of the first one too long without a strong enough new punchline.
I think "Rad Santa", would have worked better if Santa Claus didn't speak in the last panel ,or said way less (like just "What the fuck?"), because all he does is explain what the audience can see already*. Or maybe Rad Santa might have had the closing line, etc.
Here are some other of your comics that I liked:
/comics/Tterb/282719/
/comics/Tterb/349199/
/comics/Tterb/312794/
/comics/Tterb/336182/
*I don't really believe this, but it's true enough.