Ok so after seeing so many guitars with their paint removed and their grain revealed I thought it would by nice to restore my first starter guitar and then burn graphics into it. Well I opened the cavity and saw that everything was painted and varnished so I did not know if it was solid wood or plywood. Assuming it was solid wood I began to sand the finish off until I passed the paint layer and reached the ... plywood layer. So my question to you guys is: am I totally screwed? or can a sanded plywood guitar still look alright?