Q: Is it possible to change the background image?
A: Yes it is possible to change the background image via Page Properties using the "Background Image" custom attribute.
Q: What should be the resolution of the background image?
A: To get the optimal resolution of the image use 2600x1600 dimension.
Q: Can the background image change on a per page basis?
A: Yes. The background image is unique per page using a page attribute "Background Image".
Q: Can the logo text be an image rather than text?
A: Yes. This is an editable area so you can place any block you want.
For more documention please visit http://themes.c5extras.com/boldandbeautiful