Great talk about a great package.
The dangers of talks like these is that they may end up looking like a sales pitch. :-)
It's not always easy to find the balance, but I think you managed to do OK. The talk was very well designed, which is always pleasing to the eye.
It gave a thorough overview of the features and tools included in the Kunstmaan bundles, they obviously offer a very nice CLI client that help speed things up.
I did not have a use for it myself, but I do appreciate the value it brings. The many questions that were asked during and after the talk prove that there is value in both the bundles and the presentation, for getting it known.
Ps; live coding is always dangerous, if I can offer any kind of advice, it's to prepare the live coding as much as possible and have a back-up plan (screencast). :-)
I don't maintain PHP packages, so for me everything you described was fairly new.
That said, I learned a lot. The obvious hints are worth repeating (from the PHP checklist) and the tips on Composer and the helpful tools like construct and studio gave the talk meaningful value to me.
I can imagine for a seasoned PHP developer there may not be a lot of new content in this talk for them, but if that's not your target audience - and you're aiming for starting/intermediate PHP developers - this is a very well designed talk with plenty of useful content and tips.
Nice coverage for package developers.
Talk could be better prepared. Lighten the mood with some jokes or things the audience can relate to in a fun way.
Perhaps mention that you're going to cover a bit of PSR-7 in the description/beginning of your talk. It's still a rather new topic and might be an attention getter.