[plum]

Definitely not 100% correct, the back legs are bad but they correct what's been done wrong there.

References:
One
Two
Three

One big, important thing to improving is USING REFERENCES. And use them correctly, don't copy them!

ignore tail and lack of a second ear.

also, if you revise your drawing again, make the back raised at a somewhat higher angle so the back legs aren't lower than the front like in mine.