Okay, the crux of this project is based on the following premise, and not an altogether original one. The great dinosaur-killer, the Chicxulub asteroid, misses earth. However, the resulting world is not simply a long-lived cretaceous paradise - the Deccan Traps still flooded the sky with ash and changed the climate and atmosphere, killing off most, if not all, of the great dinosaurs. The survivors of such an event, however, are a handful of small therapods, mammals, birds, and even a few pterosaurs.
(As you can see, it's mostly the dinosauroid concept I've been interested in lately.)
Shown here are representatives of the three main surviving lineages of beaked troodontids - the toothed troodontids being out-competed and otherwise wiped out by mammalian predators and dromaeosaurs during the Eocene. The top is a cursorial, ratite-like dinosaur, which can be seen elsewhere in this gallery. The middle is a scavenger and predator of small mammals. And the last is a member of the omnivorous branch off the family tree, the same lineage which the dinosauroid is a part of.