You should see a half inch of dress shirt beyond the length of your wedding suit jacket sleeve.
How Should a Suit Fit?
How a Suit Jacket Should Fit
How Should a Suit Fit? Your Easy-to-Follow Visual Guide
How Should a Suit Fit & What to Avoid - Suits Expert
Sleeve Width – Bond Suits
How Jacket Sleeve Length Should Fit - Proper Cloth Help
Sleeve Length Guide For Suits, Jackets And Shirts
Perfect Sleeve Length - Universal Tailors
Suit Alterations: What A Tailor Can (& Can't) Do
3 Men's Suit Mistakes to Avoid
How Should a Suit Fit & What to Avoid - Suits Expert
How Much Can Your Garment Be Altered by a Tailor? - Proper Cloth Help