Also I barked at a tree and a bonus came out, but due to the position of the fencing I couldn't collect the bonus
Same here. Agree that your collision detection could do with an overhaul.
All in all pretty good though. The graphics look quite good and fit the gameplay well I think. The hearding idea reminds me of Herdy Gerdy on the Ps1.
For info, the default render method caused the menu's to cover most of the screen but the alternative worked fine.
Stevie