One of Murphy's laws: No good plan survives first contact. Oh, and Murphy was an optimist. That being said, stick to your design plans but at each step evaluate the function and then the form. "Form follows function." It should feel, good. It should cut good and then it should look good. Then, if you decide to change something make the changes. Be bold. At the end of the project, you (we) should have learned a lot. Make notes on your design sheet. Then, make another one ASAP applying all of your lessons. Ask for advice but beware. When you show your prize to the non-maker, they seem to love to point out the obvious and they have no solutions. It's the experienced maker that you want to solicit. He'll be genuine, and understanding... he was there!! Oh, and he'll have solutions... God bless the solution finder and not the fault placer. Be persistent, apply the lessons and then do it again!! I'm looking forward to seeing some photos of your creation!!