Shahmukhi Script confusion. Please swipe and let me know which pic is more accurate?

Hi all. This is my attempt so far I used **source 1**. I stopped where the highlighted colour is due to confusion and I would have preferred categorising them together **source 2**. The videos online are good but different so it confused me … one says one thing another says another. **Source 1 ** https://youtu.be/YPKe95FH3_M?feature=shared **Source 2** https://www.reddit.com/r/punjabi/comments/yhjrko/i_attempted_to_make_a_chart_for_the_shahmukhi/?rdt=54609 **Source 3** https://www.researchgate.net/figure/a-Urdu-Alphabets-Durani-2008-b-Punjabi-Alphabets-Shahmukhi_fig3_50842659 **Source 4** https://en.m.wikipedia.org/wiki/File:Standard_Shahmukhi_alphabets.png