I have had my ceiling skimmed this week and to be honest i arent very happy with it and i also noticed something never seen when ive had work done before there appears to be a line halfway across the ceiling and its drying differently on either side. Where it meets in the middle its very rough and uneven as shown in the photos when i hold something flat up to it could someone advise me why. Ive held a piece of plasterboard up to ceiling where the line in the ceiling is and the photo where it shows a drawing on the piece of plasterboard shows the difference in colours between both sides. It seems to have a lot of marks on it will these show when painted bearing in mind spotlights will be shining across the ceiling not downwards.