Ops! Assignment must be in A4 format. Here is the correction.

step 1: Open a new psd project file and name it as "E-wallpaper size correction", and choose the format of A4. Resolution 72 bit.

step 2: Open the previous project, select all layers.
create a merged layer from all the layers by clicking Ctrl+Alt+E. Merged layer created, like the diagram below.

step 3: Arrange Documents to 2 up format. Drag the Layer of "merged layer" to the A4 that we newly create.

step 4: Click Ctrl+T to transform the Size of the image to the suitable size.
step 5: Create a new layer, name it as "White Border". Use "Soft Round Brush Tool", to create the white border at the top and bottom of the image.

step 6: Create a new layer, name it as "Snow Border". Use "Ice 1 Brush Tool" that we created in the previous time, and draw a delighting border on the white border.

step 7: Choose different clor of brush to touch up the border to make it more 3D.

Double touch up.

WE ARE FINALLY DONE~

Newly A4 E-wallpaper of WINTER FESTIVAL.