Some criticism has been levied toward the character's design, however, for what some fans have called whitewashing of her East Asian features, in addition to perceived oversexualization.

[3] Elaborating, Rogers stated that armor pieces in early designs of the character were removed to "change her silhouette from other flying heroes in the game".

Zhang also cited lore reasons for the art design changes, explaining that "her suit was created by her mom as an iterative thing that they worked together on".

Juno's outfit consists of a blue form-fitting space suit with red highlights and a zipped-up orange jacket atop it, while grey gloves cover her hands and a transparent, blue-tinted, fish bowl-like helmet adorns her head.

[6] Juno Teo Minh is a medic from a colony based on Mars, secretly founded by Lucheng Interstellar as "Project Red Promise" to terraform the planet for future inhabitants.

[3] In supplemental media for the Overwatch franchise, she appeared in the comic Red Promise, which detailed her backstory and revealed her mother is Jiayu, a friend of Mei's.

Dashiell Wood of TechRadar called her the most adorable character they had introduced into the game at that point, praising her gameplay but also her design aesthetic.

[13] Robin Bea of Inverse observed that while she was immediately popular, some strong criticisms were voiced in regards to concerns in her gameplay being overpowered, but also in terms of her characters design.

In particular, Juno's "light skin, enormous eyes, and a round nose" were called out as a recurring example of whitewashing by Blizzard's design team that was observed in much of the game's East Asian cast.

Elaborating, he felt each character introduced since the game's release had either been under or overpowered; by comparison, he saw the greatest part of Juno's design being that "she does everything fairly".

Meanwhile, Juno's utility required the player to be more aware of her positioning and team, and instead of fundamentally changing the game, rewarded good decision making.

[15] These sentiments were echoed by Tyler Colp of PC Gamer who saw her as the most strategically pleasing character in the game due to how her abilities required thought and setup to use properly.

Colp closed by stating that all together, she felt like a "brilliant blend of strategy and payoff" that made him miss when the game was "slow enough to have heroes who could change the course of a match by making a series of smart decisions to set their team".