Old Book Game Prop

Made this for a friend's game, For whatever reason he is using Sketchup to do all his modeling and texturing, not sure why but i'm helping him. Theres no definitive name for the project yet but i'll update when there is. I don't do much texturing and I’m not very experienced in game design so this model may be horrible compared to other low-poly game assets. if anyone comments about something i can improve on i would really appreciate it, i feel stuck developmentally because i don't have many friends who are into 3D and the ones who are don't have enough experience to use software like Maya or Blender so i'm on my own in that reguard. Update* This was made before i discovered normals.