I put your three frames on a black background so you could see them more clearly. As you can see they are not exactly in the same spot and that is what is causing the jerky movement. Sometimes one can accidently move an image even 1 pixel and that will be accentuated with animation.
Click up the attachment to see it better.
What tutorial are you talking about?
And there are always more ways to do something, some a lot more simpler.
The results of constellation will vary depending on the size of the images and the width of what is going to have the plug in used on and which setting you use. Normally we will use "make the selection transparent" that will get rid of the line under it and only leave the little twinks. Here is an example of what I mean. this is just one frame of each different type of setting They all will give different results. And again, it will all depend on what image you are using and what you are trying to do to it.
Oh Lynx, What a beautiful baby girl, and she is just priceless... I love babies so much and they always look so precious and I used to love them when they are sleeping, I hope you have a great day, and I know you will enjoy your time with her... Big Hugz
Just wanted to let you all know, I been busy working on designing new kit to add to my stores. Plus I came in contact with a couple of people who had Covid, So I been sick from that to. Luckly I had my first covid shot so I didn't get the full version of it. Did not have tp go tp the Dr or ER. Then Saturday got my second shot, woke up Sunday morning running a fever and a bad headache from that. But I will be taking the shots again when it is time cause a small case of the virus is better than the full case of it.
I will be coming by and checking in, but got to get those kits done first. (((hugzzz))) ♥