VR Rivera on Instagram: "A lot of new oil painters struggle with the awkward middle stages when things start to get dull. Never fear! There are things you can do to help, oiling out! But make sure to keep in mind: 1. Only a thin layer. Too much oil and you run the risk of making your painting too wet for too long. It's how oil ends up with the bad rap of taking months to dry. 2. Only do this over a touch dry surface. If you can run your finger over your painting without lifting any paint then yo