It's what we like to see: a well-flowing story that uses a lot of classic tools (the three-act structure, the food/sex thematic intersection) to a great effect. There's a tangible sense of specificity to Donut Holes, too, both in how it considers the furgonomics of making donuts and how it portrays running a food truck in general.
The cartoony art style fits the vibe perfectly, and the character designs feel purposeful in their use of color & animal characteristics. Although the interpretation of the game jam's theme is not the most creative one, I like the effort & care put into its visual implementation – the thinnest variant feels almost unbalanced in how lanky it is, which really makes the later sprites pop. Simply a solid, thoroughly enjoyable package.