If it has no varnish, light sand then oil. If varnished very good sand using a electric sander, medium first sand then finer the second sand, wipe down to get all dust off then oil. If you use a combo of linseed and turpentine make sure you use gum turpentine. Use more turpentine to start off as will penetrate the wood better. Good luck

Were you meaning to add this photo from your ideabook? If not, I'll can go back and delete this reply.

It might be worth while to consider the rest of the space also. Your breakfast bar/kitchen is located quiet closely to your dining table so depending on your kitchen space (apologies, I can't see too much of your kitchen from the photo) you might want to think about the overall style you want to achieve for you entire open plan space, and select pendants that would work for both your kitchen and dining. This is a project I worked on recently that shows how two different types of pendants can work harmoniously in the one space that is most similar to your kitchen and dining set up. Keep us posted on what you decide!

Love it! Find some ultimate bathroom vanities designs here https://www.abiinteriors.com.au/product-category/cabinetry/bathroom_vanities/ in different colors.