For this coloring page, I would start by coloring the strawberry itself with a nice, vibrant shade of red. I would then use a darker, but still bright, red to add some shading and depth to the strawberry. Then, I would go over the seeds with black or dark brown and use a light brown or beige shade to add some texture. The leaves I would color with a light green, and then use a darker green to add shadows and depth. To really make the colors of the strawberry pop, I would use a bright yellow or white to color the background of the page.