My game looks like minecraft

Hai, so i’m new to unreal and i need some help with stuff. First thing: Imgur: The magic of the Internet , is there a way so each texture is different to the others? otherwise it looks ****. Second thing is, can i reduce the reflection of my material ? You can see it in the first pic, I know how to change it but not in this way : Imgur: The magic of the Internet , I hope someone will help me , thanks love you bye