I agree with you John👍
The two joints we can see are a bit lumpy, indicating that the solder did not flow and attach to both parts properly. Typical sign of not enough heat, or possibly the parts and/or iron tip are not clean.
If the parts are not clean surface oxidation can prevent proper flow and bonding. I always clean both parts with 600 grit wet and dry paper.
Typical multicore resin solder needs an iron bit temperature of around 250-270°C.
I use 0.5mm diameter solder for electronic work, 1mm for brass/copper work.
25W iron for electronics, 50W or mini gas torch for metalwork.

Wez; A proper joint should show a clean, smooth, shiny curve between both parts.
Any 'joint' that looks dull grey or silver is a bad/cold one.
A clean iron tip is also paramount! When it's hot, and any residual solder has melted, clean the tip on a damp sponge. Then 'tin' the tip with a little fresh solder which should flow around the tip IF it is hot enough. If not the solder collects in a ball on the tip indicating that the tip needs cleaning and/or more heat.
This thin film of fresh solder is necessary to ensure proper heat flow to the two parts to be joined.
Your first attempt is quite creditable Wez. 👍
Hope this info helps with your next creations Wez.
Cheers, Doug😎

@Barry: Like you I spent many years working in electronics, 47 to be precise. Tempus fugit🙄
And just as many years as a hobby, home made ESCs, special function switch controllers etc. etc.😉Nowadays with inexpensive 'thumbnail' size modules it's hardly worth the effort, BUT I still like the challenge😁

Making jigs for this sort of work pays off. well done Cheers Ian

You've done well, I struggle on straight forward electrical soldering. Neil

I'm pretty sure it's a lot better than I could do and I was in electronics for over 20 years, both as a hobby and as my career.

Nicely done.

Wez, the ladder looks really good.
If I might offer a suggestion, I looked at the solder joints
and it appears that the joints need to be a bit hotter than
you are getting them.
The solder should be very smooth connecting to each brass
part.
Try some scrap brass pieces and see the difference in a
"cold joint" and one that is hot enough.
Congratulations on taking on a new challenge and enjoy the experience!
Barry

Damn good ladder Wez!!!!!!

You've made an excellent job of the ladder. A very good finishing touch to the boat.

Nice one 'Cyril'👍
Inspires me to fit one to my Sea Scout😉
Doug😎

So last couple of days has ended in this finish ,I hope it’s up to scratch as it’s my very first time soldering ,after making a jig well an old sale board with a couple of holes in to keep the frame straight and a few washers and bits of wood finally think I’m getting the hang of soldering ,bit of clean up to do but I’m pleased