It's called using reference, and there's nothing wrong with using reference material, seriously. Even if the poses were traced, you learn a lot from just drawing pre-existing poses. It just gets a lot of stigma for some reason, and it's absolutely unnecessary as soooo many artists use reference material, even famous painters such as Vincent van Gogh and Rembrandt. It shouldn't be considered a bad thing.
There's still a difference between using reference and tracing though. Using reference is taking something and drawing from it, so not tracting over the lines, just draw from what you see and use it to your advantage. Tracing can be tracing a pose, which is fine, but the only time you should be getting mad about tracing is when it outright copies a pre-existing artwork down to all the lines.