Skilled e-learning landing page solution

Tried to detail out things I know that I had done wrong and what I wanted to work on.

Some questions I had for the community would be:

• How would or did you tackle the image being half off screen for tablet and desktop designs?
• How do you think about naming conventions for variables and classes? I think mine got a bit messy and want to improve there.
• Are there any recommendations on things I can improve upon based on my code or implementations?

Thank you anyone who takes the time to check this out, I am still not great with front end work but I really want to improve my skills and will continue to work on projects here!