When you said you'd mix Yeosang up with Songhwa it was Seonghwa in the front with pink hair and Yeo running in the background. TBH I don't think this guide makes much sense for someone who doesn't already know the context of those clips, if you want to watch something more in-depth then The Ultimate Guide by ofallthekennys is quite thorough and more up to date but it's very long. Out of the short ones A Lighthearted Guide has the least mistakes and weird things but it doesn't spend an equal amount of time on the members (ie you won't find out much about Yunho from it).
Try a light hearted guide if you want another short one. Or if you want a thorough one try the one by all the Kennys. This one needed more about the members. But good reaction! 👍
ik you already did a seventeen guide but it wasn't that helpful. can you check out "a subpar guide to seventeen" maybe? it's much better imo i also suggest the boyz!!! i don't think you've reacted to them yet but they are a crazy talented grp and one of the most loved/trendy boygroups in sk currently