It might've been easier to show the GOOD solder joints and the 'finer' points of this PCB.
Nothing like a properly tinned, properly cleaned, fully dewetted pad with a proper concave fillet between the lead and the pad connecting the 2 parts...
I saved those 4 pictures and I sent them to the instructors at the 2M-CCR class I took last year as examples of what NOT to do.
(BTW - I saw 2 pads that would pass at that 2M-CCR course as 'acceptable' in the upper left corner of the 3rd picture, the rest....fail.)
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