The following is a partial list. View the full list of errors HERE
The dorsal phaser arrays do not extend far enough around the saucer, the ventral phaser arrays are broken up into four strips, two along the darkened indentations between the rim and the bulge and two much smaller ones are on either side of the weapon pimple.
Missing Starfleet decals from ventral saucer bulge
Dorsal hull decals missing the ship registry
Aft shuttle bays 1 & 2 are too small; the doors are the incorrect shape and are not numbered
Central shuttle bay / Cargo doors missing.
There is a little nodule jutting out beneath the landing platform at the aft of the saucer that should not be there.