@holisticherbgirl Those are very ambitious goals. I think before butterfly (which I know you can do on the pulley system), aim to hold an actual iron cross isometric (e.g. 2-12 secs depending whether there is band resistance) on the rings and maybe even strapped/band/platform-assisted cross pull outs (for concentrics).
For Victorian, do front lever work first- then front touch lever, then straight arm front touch lever (incredibly difficult, even for ring specialists gymnasts- see:
Manuel Caruso or
Danny Rodriguez). Also, you can do victorian levers on pbars (tucked, advanced, half/front lay, full)- this would be much more attainable.
For Pelican, I don't know too much about that yet, so I won't comment.
Yes, concentrics (e.g. butterflies) are the most bang for buck- but scale them appropriately. Your goal now is to hold a cross- not do a butterfly- so do cross pull outs. Once you can hold an actual cross- start working cross pull outs at a slightly lower position than parallel (with 80-95% bodyweight)- and then work from there. That's the approach I would take (and will be taking in the next few coming months when I start training unassisted pullouts / assisted butterflies)!
For front lever- I would get a waist-level set of rings or low-level bar, hold the resistance band on both hands and lean back on the resistance band (pressure point should be at your waist / butt)- see my
front lever progression ig stories.
Separately, you might want to practice your pbar and straight bar handstand- you can do a planche, but not knowing how to hold a still handstand will prevent you from doing 90° presses and whatnot. Make sure you lock your elbows at the top when doing handstands too. And once in a while, start your handstands from tuck press ups, pike/straddle, etc.