Layers: tSilk (silkscreen)
tName (most part labels)
tPlace (placement marks)
U5 label misplaced
R87 and R88 partly covered by pad
USB and X1 (should not be in tPlace layer) outside board area
U3 label missing
U$1 name missing?
L1, L2, L3 partly covered by component/pad, move to left of component?
U4, SE13 label misplaced
U99 label misplaced
JX1, JX2 below header components
L18, R77, C84, R98, R93, R94 label under component
R23, R24, R97, R25, R26 label position could be better
Q1, U2 label missing
strange bracket labels near R53, R54