As it's only a Beta so far this review might not be accurate when the final version comes out but so far...
I've been following Pokemon Light for at least a year in the development thread and was excited to see a playable Beta. The screenshots, the presentation, it looked very promising.
So here's my short review:
-What I like is that there`re Pokemon from Gen4(maybe Gen5, I'm not sure, I haven't met any so far yet). For someone who played 3Gen games so often as I did it's nice to see a few new Pokemon in the game.
-The titlescreen looks great, it may be a spoiler to the story. Btw, Lucario is such a cool Pokemon
-The graphics, at least on the screenshots look good. While not everything is yet accessible in the beta, it'll be in the final version.

So far my review sounds like I like(lol)the game. I really do, but I can't ignore what's ruining(well not ruining but more like making the game less enjoyable)the game:
-A lot of grammar mistakes. Although I hate to be the bad guy(actually, I don't, it's pretty cool)the mistakes can really get on your nerves. At least the creator knows that so I hope that the final version will have these fixed.
-Although it's a Beta you(or rather I)would expect that the game works as far the game goes. I could have dealt with that if you could only get one badge but that's equalized with an interesting game in general. But things like missing sprites for the new starter Pokemon or other mistakes that could easily be avoided because I believe that the owner and his/her team have experience in Rom Hacking.

My conclusion: I'm very interested how the final version will be. I see potential in this hack, I hope I won't be disappointed.

I would say that your review is good. It has a good amount of detail but maybe you could break it down into categories. Overall good job. Have a nice day.