You've got distortion issues, particularly if you want to match up with your previous regional map. You can't just zoom in and out. World and regional maps need to be in different projections.

Judging by the aspect ratio, you appear to be aiming for Plate Carree/Equirectangular, which is OK for a base map to feed into software for conversion to other projections, (the math for it is really easy) but it is a horrible projection for finished maps as it has particularly pronounced and ugly looking distortion. If you don't include that distortion, then it's the land itself that's distorted.

To convert your original map to this projection, you would have to do something like this to it:

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Otherwise what you've drawn in your new map is actually something like this:

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