give him some high tech armor to show how advanced of a species he is or something

Maybe add some touches of red and purple to match the color of the clothes. You could also use the three streaks on his glove as a symbol for the suit.

Also, I think you should get rid of the double antennae as well as the nostrils. You should also revamp the eyes and mouth.

You can use other peoples oc\’s as a reference incase you need help.
Try to be realistic.

Since you probably aren\’t completely experienced with armour, you should pay close attention to the design of the suit in the reference.

reference for suit:

fire

water

earth