CAS(E) this Sketch! Challenge #5

Hi, friends..

I just bought Deasy Designs clear stamps, Happy Winter set. This set is really cute! You can combine each stamp to create unique designs..

This is the sketch for CAS(E) this Sketch challenge this week

I used the stamp set to make a Christmas card for this challenge.
Here is my card:

Stamp: Deasy Designs Happy Winter, Penny Black The Wonder (Merry Christmas)

coloured with FaberCastell watercolour & Copic marker

Baker's Twine Moraschino

Somehow i feel that this card still has something less, feel it's just too plain..i don't know what.. I'd be very thankful if you could tell me what is it..

Thank you.. :) :)