where are your bridges in these spots??
your islands look like they are just floating and shouldnt be there cause they're all blocked off (island is the white floating around in the sea of black without anything attaching it). is your stencil really flimsy? in the future if you wanna make a street stencil stick to big bridges and use plastic for your stencil instead of paper or card stock, it lasts much longer and gives crisp edges.