The phrase "beautiful pictures" means photographs or images that are pleasing to look at, often because they capture something visually pleasing or special. Full definition
«But another factor in lower [ing] the number of abortions is the power of beautiful pictures of life inside the womb, through ultrasound,» he said. (christianitytoday.com)
Their pretty, glossy pages are filled with beautiful pictures of delicious food... so hard to resist. (oneplustwodesignco.com)
Thanks for sharing such beautiful pictures of your home. (theinspiredroom.net)