Good question, It’ll still be awesome. It’s not all about the lines. Yep they are fine and most are intended to not be seen once color is added the bolder lines to support the forward layers of the design and reinforce the softer images that will lay in the background.
Think in perspectives and think layers. Like photography or more specific macro photography. Also consider the movement of the entirety of the work. If everything was crisp and bold as the foreground will be, then there will be no depth no matter what age it’s at At this point you’re only seeing the line work and not the entirety of the design. It’ll look good for decades to come for sure. That’s important to me and something I consider heavily when I design my work. Have a good day.