I love these kinds of games, the camera worked for me personally, but I could see it grating on some people. I liked the simplicity of the mechanics but can see the dive really adding some gameplay possibilities although there weren't really many scenarios I found where I could use it in the demo. I think you could expand this a bit and because of the simplicity of the mechanic I think that's a good foundation to build on. In terms of art you might want to find another character to use instead of a frog though, there are so many games with frogs in them these days that to stand out you might have to change things up. Looking forward to seeing if you build off this!