Dissolve a small amount of your purified product and spot it on a final TLC plate. Develop your TLC plate in the appropriate solvent and visualize it using UV light and iodine. Compare to the starting material and reaction mixture.
The initial plates showing the starting material and t=0 and t=10 time points are also shown for your reference.
Don't forget to go back and sketch the t=30, t=40, and t=50 plate if you haven't already!