*In the vesk art, the mechanic is female and the soldier is male. Vesk females have bright colors, while the males are more drab (hence his need to show off those abs, presumably). They have similar body shapes because that's true of a lot of reptiles, and because we all swore a blood oath at the beginning of this game that there would be no lizard-breasts in Starfinder.
(To paraphrase the Trix commercials: Silly artists, mammary glands are for *mammals*!)
What about Vesk with Body Image Problems because of a pervasive Humanoid standard of beauty? Will there be wearable fake breasts for them to strive to reach an impossible ideal?