Fellow Xara users,
I am contracted to write a book about the biology of exercise with a famous athlete coauthor. In addition to sport photography I will be self-illustrating the book using Xara PGD9 and Autodesk Sketchbook Pro. I would like constructive criticism of these images before we go to print. Anything you think that needs correcting, different colors, composition, or detail.

Xara PGD9 drawings:
Click image for larger version.  Name: FamilyTree.jpg  Views: 169  Size: 72.1 KB  ID: 102451Click image for larger version.  Name: MitoBig.jpg  Views: 178  Size: 47.5 KB  ID: 102452Click image for larger version.  Name: OvumSperm1.jpg  Views: 175  Size: 35.6 KB  ID: 102453Click image for larger version.  Name: ATPSynthase2.jpg  Views: 167  Size: 75.1 KB  ID: 102454Click image for larger version.  Name: Einstein6.jpg  Views: 186  Size: 143.3 KB  ID: 102455Click image for larger version.  Name: BackBoneMuscle.jpg  Views: 168  Size: 52.4 KB  ID: 102460

Sketchbook Pro drawings: these are drawings, not photographs:
Click image for larger version.  Name: PrimeRib81.jpg  Views: 176  Size: 47.5 KB  ID: 102456Click image for larger version.  Name: AppleTwo97.jpg  Views: 171  Size: 32.8 KB  ID: 102457Click image for larger version.  Name: BlueEye7.jpg  Views: 166  Size: 44.2 KB  ID: 102458Click image for larger version.  Name: StrawberryAvocado6.jpg  Views: 178  Size: 86.9 KB  ID: 102459