Temps are between 22-25C now
@Sh311Sh0ck3d I did it the same way, but dried and died and now I don't have other cuttings.
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Your Temps look good. An air moving fan, 6 " or so would help, especially if its placed so its blowing air from below the canopy. You can get a little clip on fan, Ive two of them, one on each Lumatek driver, keeping that kit cool will make it last longer.
You can take a cutting from pretty much anywhere on the plant. Might be more difficult to root. This cloning, although straightforward its not something you need to be worrying about too much. Its an excellent way to hang on to great genetics. Only once did I miss the opportunity to clone my plants, my first grow. Strain dependent, like Chronic, need as long as 10 weeks in veg to reach maturity but most strains need at least 8 weeks in veg ( from seed) before you should flower them and you can still take cuttings 21 days into flower, although its always best to take cuttings from plants in veg. I don't know if the same applies to "feminized" seeds. Only ever grew feminized seeds once and I didn't have great results.
You can be better prepared next time.
There's as many ways to grow Cannabis as there are strains. Remember, when it comes to plant food, especially nitrogen, less is more.