Your arms already look great. Lighting with more contrast is good for making you appear more defined though
4
Anonymous12w
Don’t just have them straight out, do the influencer thing where you tilt your forearm up and open up your hand. That way you can contract your bicep a bit and possibly get a better angle for the tricep
2
Anonymous12w
Forearms could use a bit more focus but other than that I’d say you look great