I don't have Adobe, is there an alternative software I can use for the Portrait Creator?
Yes there is! The alternative is an app called Affinity Designer for Desktop.
It’s a more cost effective alternative to Adobe and has very similar functionality as Adobe Photoshop. Two important things to note that only the Adobe Photoshop files work perfectly in Affinity and you will need the Desktop version of the app and not the Mobile version of Affinity.
Although the steps for creating your first portrait are very similar to the Adobe apps, I don't unfortunately have a specific Affinity tutorial, but you will still benefit from watching this Adobe app tutorial should you need help getting started.
If you need help changing the colour of an item of clothing or adding a pattern to an item in Affinity, you can watch that tutorial here.