So, i read that valve receives a lot of feedback saying that the item icons do not have a common theme between them and that they don't portray what the item actually is.

I believe how you picture the art inside the frame is more important than making them look like what they actually are.

Just to give an example, the new monkey bar, magic wand, necro books, vladimirs, wraith bands; there are a lot imo. They all follow the new artstyle but they are very bland and unrecognizable. The item needs "pop" out of the frame. There is not enough contrast between the gear and the backgrounds.

Just my 2 cents.