I'm sorry, but I can't in good conscience give this quest higher than a 1-star review.
-The overworld design is bland and empty, even by my standards (And I know a thing or two about bland, empty screens). I mean, it's REALLY empty. The mountains are way too straight, the lack of trees and other environmental combos makes every screen look the same, and it's just not fun to play through.
-As Shane pointed out, using CSet 6 for the grass is a BIG problem; because it changes colors when you get the blue ring.
-There are a TON of errors with the layering, with you using overhead layers in a LOT of places they shouldn't be. You shouldn't be able to walk under the statue of Link at the very start of the game, or under random floor tiles in dungeons.
-There are warp errors, in particular, your direct warps; which can easily land you in the middle of solid tiles, necessitating an F6 to continue.
-The enemy placement in the dungeons is just awful. If you're using narrow paths, like that, you need to make sure the enemies are reachable (there are enemy placement flags to do this), because nobody, and I mean NOBODY likes waiting around for an enemy to get close enough to kill just so you can continue to the next room.
-The dungeons themselves were uninteresting, too easy, and didn't really have any challenges to them
-You give WAY too many HCPs and the blue ring is available way too early. The games extremely boring when there's no challenge to it. It's funny that you said it might be a bit hard because this was among the EASIEST quests I've ever played.
-It's very obvious from literally the first screen that you didn't bugtest this quest, at all, nor did you give it to someone else to bugtest. This is unacceptable. I know these are fan games, but SOME effort on the part of the questmaker in terms of testing is expected.
-I know I already said this, but it was SO BORING!

So, yeah, to be completely frank, this is a pretty poor effort. That being said, it's not inconceivable that you could improve. Don't give up. But... Honestly, you're probably best off starting from scratch. Honestly, I don't really feel like this can be saved. My recommendation would be to start small. Work on one screen at a time, and make sure that each screen has something to offer. Look at the world around you, how trees and mountains look in the real world. Take inspiration from the official Zelda games, see how they're laid out and then look at your map. Same goes for dungeons. I know I've made some pretty terrible dungeons, in my time, so I know what I'm talking about when I say you have a LOT of improving to do. And, I can't stress this enough, TEST YOUR QUEST! If you don't want to play your own quest, why would anyone else want to?

The screen design is kind of awful, like why is there like 50 screens that look the same? I would recommend that you try and just make a couple of screens look good. Don't worry about making a huge world, just try and what what you can and go from there.
For dungeons, don't over whelm yourself with so much that you can't handle it. Game design takes time, and you can't expect yourself to be amazing the first time.
If making 8 dungeons is to much, you can always just only have one dungeon in the game. That's the great part about creating games, there are no rules, whoever said the game had to be a curtain way? It can be whatever you want it to be.

I was going to write a fairly long review but since my rating has been called out by someone very impatient, I'll just summarize my thoughts:

• Sprite CSets for overworld, resulting in grass becoming blue when you obtain the blue ring, etc. and visually it just looks bad.
• Level design is pretty linear and uninspired. Dungeons feel like they get shorter near the end of the quest.
• Overworld design is worse off, pretty empty and nothing really going on. Caves are all the same and Heart Pieces are given out too easily.
• Lots of layer errors, and the admittance of there being bugs shows no sign of quality control. Always beta test your work! Provide demos if you don't want to do that so others can help you point out things you can polish up.

Might write an actual review later, but since my thoughts have gotten across I see no reason really now. All in all, I can't really call this a solid effort, but we all start somewhere so don't be discouraged and keep going!