I tried counting the spin features (a '+' for a feature). It's probably off and I'm not entirely sure I have all the technical jargon straight, but:
1. camel spin (2) >> doughnut (4) [+ variation, + edge change] >> half-Biellmann (2) [+ variation] = level 3? or level 4 if the camel itself counts for a feature
2. [+ flying entry] >> sit spin (8) [+ variation, + 8 or more rotations] >> pancake [+ variation] = level 4
3. sit spin (4) >> upright forward (3) [+ variation] >> [+ change of foot] >> camel spin (2) >> I-spin [+ variation, + difficult change of position on same foot] = level 4
I don't know. Maybe someone more familiar with the scoring can correct me.