simonc I think the best way to get feedback is to put up a video if you can of your technique, upload to YouTube and then share here. Think we need an area made (hint hint @DavecUK 😉) for video feedback, it worked well on the other forum I felt.
I currently turn on the steam just above the milk so none gets sucked up and then place it just under the surface to get the paper ripping sound. Using the feel of the jug, I dip it under a little deeper when it just gets warm and get the best swirl possible to mix it all in. After watching a few tip videos I also recently started letting it sit on the side for a minute while I clean the tip and then bang any bubbles out and swirl. This apparently lets the milk settle (if using full fat) and bubbles loosen so easier to get rid of. The swirling then obviously gives you the silk-like texture. If all good you won’t get the layer of foam just sat on top but a well mixed drink.
My art isn’t great which is down to my pouring technique but once that’s good I think I should be able to get some basic art down. Oh, I’m only using a 2 hole tip on my Minima, the 3 hole was a bit too quick for me.
Good luck, I’ve still got lots to learn but feel I’m getting the hang of it slowly but surely 👍🏼