Nondescript

Get your eyes checked, she's beautiful.

And she's talented.

Harley Quinn Smith and especially Lily-Rose Depp have sufficient spunk, spark and chemistry (and they’re charming bopping through an end-credits cover of “O Canada”)
http://variety.com/2016/film/festivals/yoga-hosers-review-kevin-smith-1201687721/

In their first lead roles, Lily-Rose Depp (Johnny's daughter) and Harley Quinn Smith (Kevin's daughter) are utterly adorable, a little green around the edges but full of such exuberance and enthusiasm it hardly matters.
http://www.thefilmfile.com/reviews/y/16_yogahosers.htm

Most importantly, Yoga Hosers is grounded by two intensely likable performances by Harley Quinn Smith and Lily-Rose Depp, whose natural charms could probably have carried a less wacky movie with ease.
http://www.craveonline.com/entertainment/946945-sundance-2016-yoga-hosers-canuck-sense

it's a pretty good launching pad for Harley Quinn and Lily-Rose who have great chemistry and show a knack for physical comedy. Some of their facial expressions, especially from Harley Quinn, get the film's biggest laughs. It would be great to see these actresses reprise their roles in a better written movie free of genocidal meat products.
http://www.examiner.com/review/sundance-review-kevin-smith-s-yoga-hosers

Rose’s father, an actor whom you might be familiar with (Johnny Depp), has quite a bit of screen time in this film, yet interestingly enough, Ms. Rose may have the better performance here, she’s just that good.
http://www.heyuguys.com/sundance-2016-kevin-smith-returns-yoga-hosers-review/

Yoga Hosers is a promising debut for Lily-Rose Depp and Harley Quinn Smith, and I look forward to seeing what they do next.
http://nerdist.com/sundance-review-kevin-smiths-yoga-hosers/

Harley Quinn Smith and Lily-Rose Depp ARE Yoga Hosers. It would be criminal if that’s not the poster and trailer. The Canadian convenience store clerks from Tusk are back in their own adventure, a lovely ode to female friendship as an Amblin creature movie.
http://bloody-disgusting.com/reviews/3377674/sundance-review-kevin-smiths-yoga-hosers-amblin-good-fun/

You know what all your back-up really denotes? That you don't think by yourself, that you can't make a developed and convincing opinion.
All you've been able to do, is make short assertions, that are totally irrelevant.

I think that girl is not pretty, that's my prerogative. I don't like how she looks, I think she's got bovine eyes, and that she's very lucky to have the means to get professionals to help get her decorated (makeup, clothes, lighting, etc.) in a way that will make her have the necessary features to make her correspond to our current beauty criteria.

On her acting skills, I think that being raised by professional actors, especially her father, has given her an exceptional training. First of all, because as it's known, the younger you're exposed to a skill, the better printed in your brain it is, so she's had the potential to become a natural actress.
Also, because of the experience of her parents, she's been able to get priceless advice on the job, that no one else will ever get, not being the children of those particular individuals.
And last, thanks to her background, she's also been exposed to other types of professionals, who may have given other precious pieces of advice.

We'll never know, all that training is potential, and I honestly think it would be great for her if she's exploited her potential to the fullest.

Finally, even though I don't like the way she looks (that's my own perception), I'm not closed to the idea that she can be a fine actress.

See, this is how you answer. And I didn't need to have the back up of anyone to formulate my response.
(the funniest thing would to have you insult me now, as people who can't argue usually do ^^)