You have a real eye for creating kooky(as a compliment) characters, like dot and creative back stories,which a lot of people have trouble with.
As another user pointed out the anatomy needs attention, while reference can be huge asset to developing a character, it can also be a bad crutch. I think it's important to know
why you're drawing it the way you are.
Let's look at human anatomy real simple and quick:
Now let's look your OC Goanna.
See how her patella looks dislocated where you joined it at the tibia?
Also, the patella and the muscle around it is a lot smaller width than it should. Consideration to how the muscle thins out should be gradual in most cases:
There are styles and manipulation of these rules, so these should be guidelines not set in stone when developing characters. However, it's a lot easier to learn this first and then bend them to your satisfaction than the other way around.
One last thing that I think will loosen up the feel of your characters is a line of action:
A little line goes a long way in deciding what your character will be doing and how.
Keep at it, I hope I was helpful.
3nodding
Links of interest:
Artistic Anatomy by Dr Paul Richer is an amazing book, shows the unity that both science and art share.
Constructive Anatomy by George Brigham is a great resource of anatomy and how to go about drawing it. Plus it's free online, my favourite price!