Well done - for one of your first outings.
I shoot with the same equipment at times and love the 50mm canon lens for portraits.
You picked a very safe lighting situation where there is very flat light and therefore you have no glaring lighting issues, but the result is a rather flat safe image.
I would prefer in both images to see the girl lifting her nose more so her iris is not partially hidden by her upper eyelid. This would also slightly improve the lighting on her face.
I seldom like the shot that comes out of these cameras - unless you have it set up specifically for each and every situation there is usually a need for some white balancing and minimal processing in photoshop to create an exciting image. I would love to see the shots after you have done some of this work.