So, I gotta admit, I don't think I've ever heard of a concept like this before, and that is far from a bad thing. You're playing a game where an army of lumberjacks are trying to take out an army of druids, what's not to love with this scenario?
As far as the mechanics go, it was all very well organized and easy to understand. You have a list of units to control, you roll a d6 while adding a modifier from one of your stats, and you compare the final result to a threshold determined by the enemy's stats. Bing, bang, boom, it's wonderful. The only real gripe I had with this game was that ranged attacks focused on trying to roll under the threshold while melee attacks focused on trying to roll over the threshold. While there's nothing necessarily wrong with this combat structure, I could see it being confusing the first few times you play, especially since the criteria for crits changes depending on whether you're rolling a ranged attack or a melee attack.
As far as the artwork is concerned, the author really was on point when it came to the artwork for both the cover and the sample card text. Everything in the book is organized and easy to read, the font choices really helps sell the concept well as you read through the entries for each unit, especially the one font that made it looked like it was covered in snow. If there was honestly one gripe I had with the visuals, it was that there was unfortunately a lot of dead space, as in, some pages just kinda end partway through while leaving the bottom half of the page completely blank, which is kind of a shame but not necessarily anything too major that ruins the overall great visuals on display here.
Overall, with a unique premise, a simple yet complex ruleset, and the opportunity to draw your own cards (assuming you don't take advantage of the fact that the artist is offering his artistic skills to anyone who is interested), this game comes highly recommended.