Landscape - Dark Room Printing

Recently I went in to the dark room to begin printing the one image that I have that worked. I started on the enlarger and did a test print and print. I then went on to the De-veer, which is a bigger enlarger and can be used to print much bigger images on larger pieces of paper. I began on this by printing full images on the 12 by 16 paper to get the border right and also the timing of how long the light needs to be on for. After a few goes and tries of this I did a test strip on the De-veer first starting with 5 second intervals then moving up to 15 seconds and this time using a number 3 filter, which was advised as I was having trouble making the sky darker without making the bottom of the picture where the wall is too dark. Before I used the filter I was burning in the sky. I first did the whole image for 10 seconds then did another 10 seconds burning the sky in and a second go of burning I did the same but added on another 5 seconds of burning in to the sky.