Ugly soldering (HP 67 internal)

[n1msr]

I have made a complete mess of attempting to solder wires back on to the HP 67 board after replacing a gummy wheel. Unfortunately during the disassembly several wires detached from the board(s). Careless, I know.

Look at the before and after pics, and after you have recovered from the shock of this act of vandalism - are there any general hints about how best to get these tiny joints tidied up? I have what I think is a narrow pointed soldering iron tip, but clearly my soldering technique is completely lacking. I am reluctant to try again for fear of doing further damage.

Thanks.