create a 15-page printable dinosaur coloring book for young children. Simple, friendly black and white line art, thick clear outlines, large areas to color, no shading, no gray fills, not complicated. Page 1 is the front cover, with several friendly dinosaurs together, like T-Rex, Stegosaurus, Triceratops, and Brachiosaurus, with the title “My Dinosaur Coloring Book.” Page 2, a friendly T-Rex with dinosaur footprints. Page 3, Triceratops in a simple prehistoric landscape. Page 4, Stegosaurus surrounded by large plants. Page 5, Brachiosaurus reaching up to eat leaves. Page 6, baby dinosaur hatching from an egg. Page 7, two friendly dinosaurs playing. Page 8, Pterodactyl flying above mountains. Page 9, Ankylosaurus walking through ferns. Page 10, T-Rex roaring gently beside a volcano. Page 11, three baby dinosaurs with their parents. Page 12, dinosaur footprints leading through a jungle. Page 13, a group of different dinosaurs having a picnic-style scene. Page 14, a cheerful dinosaur family under a big tree. And page 15, the back cover, with simple dinosaur footprints and small dinosaur shapes, plenty of white space. Make the pages suitable for home printing on A4 paper, keep all important artwork inside printable margins, export as a single downloadable PDF with a glossy front and back cover finish