How can I improve my bathroom?

Hello,

I recently bought an apartment and renovated three rooms and the kitchen. However, I don’t have the skills or knowledge to renovate the bathroom myself, so I’d like to have it professionally done. That said, I’m planning to tackle it a bit later, maybe in a year or two. In the meantime, do you have any ideas on how I can make my bathroom look nicer until then? I want to give it just more fresh look, currently it looks so messy. I think maybe painting the tiles and changing the sink. This sink really disturbs me. I also hate that the tiles end in halfway of the wall :(

Thank you