Uploading vectors

hey, I just recently got my Xcarve so I am pretty new to all this and kind of learning as I go along. I was wondering if I could get some advice on what is best way to upload vectors into easel to set up a carve.most of the vectors I get from Shutterstock. I often have tried by doing image trace but at times struggle to balance out the threshold and smoothing. when I attempt to upload certain images as an SVG it ends up coming out all screwed up and can barely make out the image. not sure if that has to do with the layers in the vector or what. my GF is the one that creates the vectors so I myself don’t have much knowledge on where the problem may be. any advice or tips would be greatly appreciated.

thanks in advance