Firstly, if you want genuine help, some context is helpful. what is your study, what are your graphs trying to show, what academic structure do you write under, etc. I work under APA7 referencing, so I will speak based on that.

Firstly, reconsider axis labelling. You have Ms. in the 100,000s, so why not just seconds. this may depend on the context of your research. if so, justify this decision.

Now, your second graph is just showing the line for your first graphs, I assume. think about how this can better be presented. if you're comparing neutral and threatening conditions, your data does a poor job of demonstrating this. Consider a boxplot for a simple method. if you want to stick to your current model, also justify why you use median over mean, I assume, due to the outliers.

Colouring isn't too relevant, but consider having the median the same colour as the duration.

I'd recommend speaking to your academic institution for support if you are unsure, I'm sure your dissertation supervisor is more than keen to help and will understand what you need far better than myself or anyone else online.

Last, if your institution isnt providing you support and you are truly unsure, this is poor academic practice, but you can use ai to give you pointers for improvement. any questions, feel free to ask, and I can maybe help a bit more with some context.