#1 probably 30s lost due to indecision and slight uncertainty because everyone else around me had another course and ran in other directions...
#2 OKish but not a great split
#3 went for the wrong stone when inside the control circle. At least +30s again.
#4 could have chose a straighter route in the beginning. #5 and #6 quite OK.
#7 zigzag along paths. Then #8-#9-#10-#11-F fairly OK again.