Vrusk for 5e

Another species in my 5e pulp sci-fi game, which will probably be somewhat familiar to those of you that remember Star Frontiers... 

VRUSK

Vrusk resemble giant arthropods, though they have internal skeletons. Eight legs grow from their abdomen, four on each side. Their torso is upright and humanoid, with two arms connected at the shoulders. A Vrusk's shoulders are double-jointed, so they can rotate their arms in a full circle without straining any muscles. They can reach any point on their abdomen or behind their backs easily. Vrusk hands are circular pads with five, evenly spaced fingers around the edge.

Vrusk have a highly regimented society where everyone knows their role and performs it for the good of all. This was not always the case and hive conflict in the past hastened the environmental decline of Marva and nearly drove the Vrusk to extinction. Modern Vrusk are seen as industrious, stoic, and rational. Their Council of Experts advise and oversee the various citizen committees which manage most aspects of Vrusk society. Vrusk consider it their duty to serve their race in whatever capacity required of them.

Of course, Vrusk have their free thinkers and eccentrics just like any other people. Where the Vrusk collective cannot find creative ways to utilize these individuals, they are politely ostracized, and they drift elsewhere in the system.

Homeworld: Marva 

Average Height: 1.5 meters tall, 1.5 meters long

Average Weight: 85 kg

Phenotypic Variation: Vrusk skin and carapace varies in color from dull red-brown to black. Their eyes likewise vary in color. These distinctions to not represent any meaningful groups within Vrusk society so far as humans know.

Reproduction: Two sexes, oviviparous

Traits:

Ability Score Increase. Your Dexterity, Intelligence, and Wisdom scores increase by 1.

Age. Vrusk mature similarly to humans, and have a life expectancy of 175 years.

Size. You are Medium or Small. You choose the size when you select this species.

Speed. Your base walking speed is 40 feet.

Ambidexterity. All Vrusk are ambidextrous and gain an ability to use any melee weapon that does not have the two-handed property in either hand. When fighting with two melee weapons at once, you are able to have your ability modifier to the attack in the second hand, provided it is a light weapon.  

Comprehension. Given their complicated, hierarchical society, Vrusks are attuned to intricacies of social dealings. You gain advantage on Wisdom (Insight) and Charisma (Deception) checks.

Educated. The Vrusk education system is second to none, you gain an additional skill proficiency of your choice.

Natural Armor. A Vrusk’s hard carapace provides natural protection. You have an Armor Class of 13 plus your Dexterity modifier when not wearing armor. If there are multiple features available to determine your AC, you choose which one to use.

Poor Swimmers. A Vrusk is a poor swimmer, and you will have disadvantage on Strength (Athletic) checks for swimming.

Languages. You can speak, read and write in Solar Trade Common and Marvanic.