Original;

For the first one I wanted to make a GUI element to make this different from the original with being sharper, better color green and shadow and details wise stick out more. A simple triangle, not much to do.

The restart symbol originally going to do the simple orange look with a brown outline around but I saw something else online that made me think, "damn I'm going to use that style instead!" The ying and yang look with conflicting colors.

The menu system for levels I wanted to do simple edits for the image.

Skipped one, couldn't think of anything good for the gear

The exit was easy; bending the arrow shown as it's trying to run away, bend towards the door instead of a simple look, the door I moved the door knob and made it bigger to show the door is open instead of "open" don't get me wrong, it's hard to make it look open when you're using less colors is harder to show the overall details.

Ref;

Link;https://www.google.com/url?sa=i&url=https%3A%2F%2Fcraftpix.net%2Fproduct%2Fgame-ui-pixel-art%2F&psig=AOvVaw2d1FQABebzJUGDUbL-RcmI&ust=1676832680053000&source=images&cd=vfe&ved=0CAMQjB1qFwoTCOiDg9Len_0CFQAAAAAdAAAAABAE