That's a difficult topic, especially the german manga artists HATE using references asI often observe...the other countrys seem more open to using them.Me for example is still and often using references, simply to reduce anatomyerrors, but keep in mind you need good ones, so you don't draw the same mistakesand keep memorizing them. Really, most artist are using them, here are even profiles withreal life women and men who are modeling pretty dynamic poses which are free to use, try them!From these many artists are trying to learn the anatomy so they are able in the future to drawfrom the imagination, with the previous pictures still in mind.In conclusion: Don't be shamed of using references, many artist who are trying to get better fast are using them.Just try using references from good sources who are often allowing it too! Thieves are totally other kinds of peopleWhen you maybe even still bring your own style and another arm pose in it, there is really no big deal!Hopefully I could help a bit