Image size, reposition logo and menu bar

Hi

I need help doing the following:

1. The images I'm using for the sliders are all appearing stretched despite my using w=1920px. How do I correct it so the images appear normal?

2. I need my logo positioned at the bottom left hand corner of the slider image. How do I do this?

3. The menu bar is currently covering up the faces of the people in my images. How do I move it to the top left hand corner of the website?

My website is http://projectmum.com.au/

Thank you for your help in advance

 

The images on the home page feature area are also stretched. How do I fix this?

 

Hello,

We have checked your website and found that your slider image is looking fine, it is not looking stretched on your site.
you can compare your slider image on your website with the uploaded image, there is no difference.

For your second and third issue,
Unfortunately there isn't a way to do that with our theme unless you custom code something up.
If we try to do that it may lose the theme layout.