I also run a modern landfall deck and it's lots of fun. #1 I'd cut the Kitesail Apprentices and add a 4 of Steppe Lynx. #2 I'd cut 2 Cultivates & 2 Khalni Heart Expedition and add a 4 of Harrow. #3 I'd try to work in an Admonition Angel or 2 for a Landfall removal trigger. Best of luck!