Here are my final renders of the bowling ball and pins. So far the course has been really fun and learning Blender has been eye-opening to what is possible 
Eevee Render | Bowling Ball & Pins
Cycles Render | Bowling Ball & Pins
Eevee Render | Bowling Ball & Pins Strike
Cycles Render | Bowling Ball & Pins Strike
Welcome with such detailed scenes. Well done.
Excellent pin base!
Welcome to this site.
Nice fine lines added to the pins though the holes on the ball look a little big.
Thank you for the kind words 
The holes in the ball are based on my finger diameter 
With that being said, I stuck with the diameter of the ball that was in the course, so, I’m wondering if I should have double-checked the bowling ball diameter. It is the one thing I didn’t verify now that you point this out.
I agree with what the others have said; the additional thin red lines are a beautiful touch. They really help the pin stand out against the ground and background. Without them, the bottoms of the pins could have looked almost like they were convex shaped.
I love it!
Thank you for the kind words and feedback! It is always helpful to know what others see and notice 
