Valkyrie being muscular

When reading the books especially the later ones like midnight (I’m currently reading the whole series again in prep for the new book coming out) I always imagine her being really muscular and it being really obvious, however I see a lot of art where she’s a lot slimmer than I pictured her. Does anyone else feel like this in regards to how she looks in regards to her body type or is it just me 😅 (cause honestly the way I imagine her is an absolute goal for me)