canon 600d

So I tried a photography technique I've been wanting to try for a long time. So very early in Saturday 2nd December here in Delabole, North Cornwall, I attempted The frozen bubble image. Despite not feeling my fingers at the end, I'm quite happy with how these turned out for a first attempt...

Hello everyone hope you can help me i have a Canon 600d has this has 18 megapixels how much of a improvement would i see with the Canon 7d mk2 that has 20 megapixels using it for wildlife photography . Thanks Sean