Thanks for the thoughtful comment!
As the designer of the puzzles I 100% understand and agree with the sentiment about the difficulty curve, and still believe I could've and should've dedicated more time for them. The biggest recurring problem was the levels went from too difficult to pretty easy on a change of 1 additional or fewer flower, and becoming a difference of either forcing grindy play or simple planning at the start. Due to understanding our scope creep a little late we settled on aiming for the easy side. Level 8 did turn out as a bit of an outlier.
Thank you for the feedback again, much appreciated!!!