You have made an interesting start, though I do have some small suggestions that I feel will help.
Unity is often of the utmost importance for a successful composition.
- Consider this with your choice of typeface; presently you have used four very different face's which do not correlate well at present.
- Think about your grid; it feels slightly loose and un-unified.
You would do well to introduce some more hierarchy; consider amplification, elaboration and proximity.
Are your pages facing? Has this been considered?