 Sure, here is the Log Skeleton model for the given process variants:
```python
log_skeleton = {
    'equivalence': {('Create Fine', 'Send Fine'), ('Create Fine', 'Payment')},
    'always_before': {
        ('Create Fine', 'Send Fine'): {'Create Fine'},
        ('Create Fine', 'Payment'): {'Create Fine'},
        ('Create Fine', 'Insert Fine Notification'): {'Create Fine', 'Send Fine'},
        ('Create Fine', 'Add penalty'): {'Create Fine', 'Send Fine', 'Insert Fine Notification'},
        ('Create Fine', 'Send for Credit Collection'): {'Create Fine', 'Send Fine', 'Insert Fine Notification', 'Add penalty'},
        ('Create Fine', 'Insert Date Appeal to Prefecture'): {'Create Fine', 'Send Fine', 'Insert Fine Notification', 'Add penalty'},
        ('Create Fine', 'Appeal to Judge'): {'Create Fine', 'Send Fine', 'Insert Fine Notification', 'Add penalty'},
        ('Create Fine', 'Receive Result Appeal from Prefecture'): {'Create Fine', 'Send Fine', 'Insert Fine Notification', 'Add penalty', 'Insert Date Appeal to Prefecture', 'Send Appeal to Prefecture'},
        ('Create Fine', 'Notify Result Appeal to Offender'): {'Create Fine', 'Send Fine', 'Insert Fine Notification', 'Add penalty', 'Insert Date Appeal to Prefecture', 'Send Appeal to Prefecture', 'Receive Result Appeal from Prefecture'},
        ('Create Fine', 'Payment'): {'Create Fine', 'Send Fine', 'Insert Fine Notification', 'Add penalty', 'Insert Date Appeal to Prefecture', 'Send Appeal to Prefecture', 'Receive Result Appeal from Prefecture', 'Notify Result Appeal to Offender'},
    },
    'always_after': {
        ('Create Fine', 'Send Fine'): {('Send Fine',), ('Payment',)},
        ('Create Fine', 'Payment'): {('Payment',)},
        ('Create Fine', 'Insert Fine Notification'): {('Insert Fine Notification',)},
        ('Create Fine', 'Add penalty'): {('Add penalty',)},
        ('Create Fine', 'Send for Credit Collection'): {