Okay, let's take a look...

So, Illusions work kinda weird here. There's four kinds of illusory magic, 

Visual, which is Light elemental. Holograms, basically.

Physical, which is Earth elemental. Mimicking tastes, scents and touch.

Sonic, which is Air. false sounds, though not loud enough to damage anything.

And Perfect, which is water-based. The difference is 'perfect' Illusions affect a target mind. Let's say I wanted some guy to think there was a tree here. If I used visual illusions, anyone could see it. If I used a perfect illusion he would be tricked into thinking he saw one. Perfect illusionists are often called Psychomancers. 

Now, people can perform Perfect illusions, but it's hard. Without decades of research you can't just make up an illusion on the spot, any perfect spell you have will be specific. I could foresee her learning up to five different ones, such as thinking you're covered in spiders or your friend is a skeleton. However, other types are easy if you put the time into it.

So, you can get away with any of those other ones but any Perfect illusions you have will be kinda situational though. You can learn more if you're dedicated enough.

Now, shapeshifting. Looks fair. Now, shapeshifting doesn't grant you all of a creature's powers. For instance, transforming into a Nightstalker wouldn't let you turn invisible, even though they can. Dragons are flat impossible, they don't liked being mimicked and I doubt anyone would want a dragon's attention. Anyway for now she can't turn into anything bigger than a pickup truck. Shapeshifting is also Earth magic, so is easier to perform in TERRA.

Summoning: Actually easier than that. You can very easily summon some skeletons for instance. HOWEVER if something you have summoned dies when it's with you it will cause you harm as whatever force you use (dark is most common) to bind them will forcibly come apart and damage your soul. Too much of that without recovery leads to death.

Everything else is perfectly fine, just know that you can't phone home for cash. Currently, we've set up camp out on the road. I'm not sure how to work you in, unless you don't mind the 'was on the truck the whole time' excuse. Which makes sense, (Recap: Party is made of newly hired guards to replace the now mostly dead defense force of a caravan) seeing as how the dwarf would have hired some sort of entertainer.