Paul: Speed 2, Str 1

Camelia: Speed 2, Str 2

If you look at the map, they are actually quite close to each other when Camelia opens the door and goes into the room. So they will likely be involved in close-quarters fighting right away.

The stats suggest that Paul would do worse in combat, but he has multiple legs+pens as well as good range. The arms reach 20 feet.

I assume Camelia will be in attack mode immediately, and that Paul will NEED to get an effigy out quickly (since he is rather weak {in strength}). So it depends on which attack mode Camelia uses:

1. Slaadii gives her +1 speed and a 6 ft transmuted tongue.
   
2. Mantis would give her +2 strength -1 Endurance. Gives her the ranged cutter (3 ft reach only), and the bubbles. The bubbles would land on the legs, but popping the bubbles wouldn't hurt the legs since they don't output aura.
3. Hercules Beetle gives +2 END at the cost of speed.
   

I would think that Camelia would try using Mantis and Slaadii at the same time, so her stats would be 3 speed, 4 strength, 1 endurance. This means her close-quarters fighting ability is superior to Paul's, and it also means that Paul probably can't run away. Paul probably would get some cuts on Camelia since he has such good range, but I think there's NO WAY he would guess that Camelia is an enhancer given that 100% of her shown abilities are entirely Transmutation. So there's no good reason to think that Paul would get his effigy out.

The mobility and speed provided by Paul's legs is "sort of countered" by the mobility and speed provided by Camelia's stat boosts and Frog Legs. With Camelia's stats, I think she could rush Paul and defeat him.

I think the location favors Camelia. If it were some sort of jungle, with trees to swing around in, I would give a STRONG mobility advantage to Paul, but the tight space limits how effective his arms can be for movement.