I would change the 0.01uF capacitors (at least the power filter cap) to 0.1uF
ceramic capacitors. Depending on how far away your power source
is from the board you may also want to add some larger filtering caps (10-50uF).
As was suggested I would add local regulation to the board. I like the MC33269.
Be careful with the capacitor selection for this device.
I also would add a protection diode on the reset pin. There is no internal protection diode on the uC for this pin.
Your board is very similar to my new PICO board. The schematic and BOM
for the PICO are in the datasheet at Loading...
(* jcl *)
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