Hi! Thank you. Yes, I find it really hard to get "flowy" lines. I know that drawing from the arm versus the wrist is a thing but I don't think I really put it in practice, I will try to think about it more!
It's funny for "space engineer" I feel more rounded shapes, like smooth curves, but I can see how futuristic stuffs usually are more geometrical so most people would have the same thoughts as you.
Thanks for your comment!