Lighting is pretty harsh...a couple look pretty oof...rubber ducky pic is the best imo....use the clone tool to fix any wrinkles in your backdrop...and duct tape to keep him still..haha nah, he's a boy, he'll break right out of the tape! Keep at it...practice, practice, practice! P.S. Cute lil...
You won't regret purchasing the 24-105...that lens is on my camera quite often.. It cost so much here to rent the 70-200 f2.8 that it would be cheaper to buy it than rent it a few times lol