Ok. Do you know how the V/A curve from a panel looks? It's quite squarish - although with slopes, and has a rounded knee point.
There will be some error involved in that the knee point will not be rounded in the simulation.
So, you have a constant voltage supply of 4.6V with a series resistance of (4.6V - 3.3V) / 0.15A = 8.67 Ohms.
Then there is a constant current limit of 150mA in series with that - that seems to have a shunt resistance of 3.3V / (0.16A - 0.15A) = 330 Ohms.
I have not calculated the CC part for use in simulations before so I might be mistaken on some detail there.
The other panel has insufficient data but you may draw out the curve(s) and use a graphic way of transposing/comparing the data and solving it that way.