I want to make regular expression having even number of b's and odd number of a's also DFA AND NFA of it
for this i made below `DFA`

I got these two **`Regular Expression`**

1. `Regular Expression` For Even no of b's `(a*a*a*bb)*`
2. `Regular Expression` For Odd no of a's `(a b*b*)(a b*b*a)*`

**QUESTION:** Did I make the right DFA ?

* How to merge above two Regular Expressions into one if both are correct??
* How to Convert `DFA` into `NFA`?

**Edits:** I got DFA From `Grijesh Chauhan` Answer 
 still unable to make regular expression which will allow only even number of b's and odd nubmer of a's .
I also tried this Regular Expression 

> 
> `(a(bb)*(aa)*)*`
> 
> 
> 

**Note:** From above RE only those strings are generated which start from a but i want that RE which generate string of even number of b's and odd number of a's regardles of starting from a or b

![enter image description here](https://i.stack.imgur.com/o2oVI.jpg)