[center]Review of 1-1 Castle Grounds[/center][/i][/b]
Starting off, I really liked the nice little intro cutscene you had at the start there. It was quite smooth and I liked it.
When I first started off, I was a very, very big fan of the whole "outdoor castle theme". The tileset you used was really nice, but it didn't blend into the grass tileset very well on the sides of the castle bricks. Adding a black outline to the sides could have solved this. The enemy placement is simple, but of course, this is "level 1" according to the title.
Moving along you have some nice coin placement (Both directional and reward). I feel like what you did with the pipes going through the bricks sort of thing didn't look too right, I think it could have also been solved with the black outline around the bricks. The 1st collectable star is quite easy to get and I wish you made it harder to get, for example maybe making the player fly up to some sort of flying course or something like that. The star was in plain sight and quite easy to obtain.
The second section was nice but once again short. In fact, the whole level is really short. It took me around 81 seconds to casually beat it and I'm pretty sure that isn't good. Sure, sure, it's a first level and all but first levels should be around medium size to teach the player how the game works and the core mechanics of the world/project. The second star was, once again, barely a challenge. For me stars are supposed to be a challenge to get to, not just "take 5 steps and grab the cake". The second star's "challenge" behind it was just pipe-hopping.
The third and final segment doesn't really have much I can criticise except about the third star (Those poor stars are getting criticism after criticism.) which is, in fact, would you believe, barely a challenge. Just take the obvious 2nd pipe and hit a pow block.
I liked the moving coins you strewn around, they are quite smooth and look nice. Also, there is some cutoff in your level. I know, I know, this is a barely noticeable cutoff (Unless you have OCD when it comes to decorating things. Well that's me.) but I still want to point it out:

Over all, I really loved the justice you did to the whole "outdoor castle" theme but the star collectables were incredibly easy (Even for a first level.) and it was very, very short.
My score: 7.5/10