Hello again, Shikashi!
Just wanted to throw in a few more suggestions for your icon set, if you are still interested in working on it!
But first let me ask you this - are you familiar with the Github? If so, would you be interested in creating a github repository with the icons where people could get your icons from, and also create pull requests with their own additions and modifications? I personally tried to extend your icon set, but I suck big time at drawing. Mb somebody else will do better and help you expend it!
As for ideas, here are a few:
run away, meditation icon, tornado, cloud, rain, hail, grass icon
spells icons: fireball, magic missile, ice shard, lightning bolt
magic shields: fire shield, frost shield, poison shield, elecrto shield, anti-magic shield
different arrows: like fire arrow, ice arrow, poison arrow, elecrto arrow
Also, I really liked new potion bottles, they are great! Just wish there were filled versions of them of different colors, and if with the '+' signs and sparkles - even better!
One last thing - the sizes of the canvas for different versions are a little bit off - they are 512x867, and 867 can't be divided by 32, which makes some programs throw errors. Also, it might be helpful if you would, in addition, include a folder with each item as a separate file - might help folks using different texture packers. None of these are critical ofc, good developer can do it on their own, but if you already have it and its not a big trouble to include it, I think that might be appreciated.
PS: here are my (mostly failed) attempts to make filled small potion as well as magic curse and cursed trap icons xD