I think it might be ok for a beginner if it was cheap..
Personally, I would practice at home, mounting the gun as if shooting the light switch or whatever. Follow the line of the ceiling etc.
Gun hold really needs to be worked on when you start. If I might be so rude, your picture, as far as I can tell, shows that you have your face wrongly on the stock. It looks like is is touching just under your eye, on the cheekbone, when it should be nearer to your top teeth. You are likely trying too hard to get your eye lined up dead flat along the rib, when it should be a bit above it.
Also your front hand is not far enough forward to control the barrels well and your hand is only using fingers. Cradle the forend in your palm.
Maybe you have moved on from that photo. Hope you don't mind the comments.
Cheers