cloaking for gap

I have just had new heating put in and i need to cover these pipes I am at a loss what to use to box them in Hardboard ,mdf , Any suggestions that will make it look aesthetically pleasing As you can see it goes through the coving dado rail and skirting I have the wallpaper but wondered on a...

just replaced a defective pentangle shower tray with a stone resin quadrant tray 1000x1000mm (radius 550mm). The old tray was fitted butted against the tiles (which went to the floor), and not underneath them, so it leaked. I have cut away tiles so that new tray slides underneath. I now have to...