Some of your thin traces look kinda lonely. Say, the trace between C19 and R18, for example. When the board etches, thin traces can get overetched if they aren't protected by other traces or planes. Which brings up another point. You might be able to significantly simplify your routing if you use ground planes, top and bottom, and using planes takes care of this problem, automatically.
The traces on the left side of the top image also look pretty lonely. Personally, I try to bundle them together tighter, in between the points where they diverge to run between pads, unless inductance or timing is a concern.
Mind, if you're making just one or two, this isn't a concern. But if you are making a lot of these, this kind of thing can change your yield/cost in the long run. Making things easier for your board manufacturer never hurts. Maybe keep that in mind for your next project.