Yep, that looks right.
One thing, I think that you can have that line match up on both the top dead center (TDC) on compression and TDC following exhaust, and of course, you must adjust the valve clearance while at TDC on compression, when both valves are closed.
If you're at TDC following the exhaust stroke, both valves will be just a tiny bit open (recall that the exhaust closes just a bit after TDC and intake opens just a bit before TDC), so you'd have to have zero clearance right
AT TDC. (After all, how could you have any clearance if the valves are being lifted?).
So, you'll want to rotate the crankshaft and observe the valve motion as you rotate it. It'll be obvious by watching the valves open and close when you're at TDC after the exhaust stroke and at TDC after the compression stroke.
And it cannot possibly be 0.003
mm. That would equal 0.0001
inch, and they don't make feeler gauges that thin.
It's either 0.03
mm (which = 0.001 inch) or 0.003
inch (which would be 0.076 mm)
Kirk