Tissue box cover

I made tissue box cover over the weekend.
It's not bad but I made a mistake.
I thought I measure correct but it wasn't quiet right size.
Made 2 and both covers are not fitted well.

Here is first one.
:P

Didn't forget to add my label 'kimtojin'.
:)

Used 2 elastic bands to hold the box.

Short just 5mm .
So I increase size.
Here is Second one.

Measurement is from first one and
the tissue is from different company.
Width and Length is same but this one is 5mm taller.
T_T

They are not perfect but well I like them!
I will try this tutorial for next one.