Help with round double knitting loom

Hi. My daughter got a spinning double knitting loom for Christmas. She made a beanie with it using an online YouTube video, but the top came out weird looking. It doesn’t gradually get smaller, it just kind of bunches up the top. Is there a tutorial or pattern for this loom that can help her out with making the tops more rounded? Also where can she find patterns to get her started? She is new to all this, something that could help her learn all the different stitches and terminology would be awesome. I have attached a picture of the beanie and the loom so you can see what I am talking about.

I’m not a loom knitter but I found this article online and it might be helpful.

It seems like you should be able to knit two sts together every so x sts then on the next alternate round, knit 2 together every x-1sts which is what is done in hand knitting. The rounds between decreases are plain knitting.