Which Sketches Should I Draw Digitally? (and which need more work?)

I've got a few sketches here of Fakemon for my region. Which of them do y'all think are worth making digital drawings of?

1) Regional Luxray (Ice Type – ice climber inspired)

2) Regional Luxio (Ice Type)

3) Fairground Rocket Ride (Basic)

4) Fairground Rocket Ride (Stage 1)

5) Fairground Rocket Ride (Stage 2)

6) Legendary Strongman Flea

7) Legendary Trapeze Artist Flea

8) Ghost Fossil Ichthyosaur

9) Ghost Fossil Mosasaur

10) Casino Slot Machine

11) Wheel and Piston (Steam Engine Part – Stage 1)

12) Governor (Steam Engine Part – Stage 2)

13) Button Mushroom

14) Stoat wearing a beetle carapace with a large moustache (bug type rodent)

15) Upside down helmet

16) Shooting Gallery Duck

17) Grass Starter (fox)