If it's gonna be the original Super Mario World but with custom GFX, music and original level design, it's nothing new. Who wants to play a hack where everything but level design is changed? Take as much time as you want to make your own levels instead.
Also Mario's graphics look disjointed on the 3rd screenshot and letters' colors on the title screen are bad. Make sure that your graphics work right and level C7's palette doesn't overwrite the first two colors (excluding transparency and white) in the first row.
Don't get discouraged making a hack, 99% first-time hackers make silly mistakes. Just keep up with learning and you won't meet (many) problems regarding your hacks. Good luck!
I have a Discord server as well! (by joining,
you agree to the rules)
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Basically, I believe in peace and bashing two bricks together.