Luke Skywalker and the Treasure of the Dragonsnakes is partly a retelling of Luke's training on Dagobah during the Empire Strikes Back. I've always thought Dagobah was one of the more visually interesting planets in the saga and was glad to see a new story set on the planet. Some scenes are direct retellings but from a surprisingly different point of view. Most of the story focuses on Luke's mission to retrieve an item from the lair of a dragonsnake. However, as with all of Luke's other activities on Dagobah, the mission contains a hidden lesson.
The comic generally captures the characters of both Yoda and Luke pretty well. I thought the artist artificially enlarged Luke's muscles, but otherwise he looked and sounded just like Luke. Yoda looked like Yoda and, unlike Yoda in the prequels, sounded like Yoda from ESB. Yoda comes across as the wise yet wry teacher. Yoda constantly plays tricks on Luke, some of which are genuinely funny. It's a joy to see this Yoda again.
As another reviewer noted, the story is an allegory for Luke's larger mission against the Empire and how the Empire (the large dragonsnake) crowds out its neighbors due to its size. While Yoda draws the point home, there are also more subtle allegories and references throughout the mission. It's clear Tom Taylor put a lot of thought into this.
Unfortunately, this is a short book, especially given the price. I'd deduct .5 stars just in terms of value for your money. If you can get this on sale or used or digital, then I'd say go for it.