Sorry if I come across as overly critical, I'm just trying to help as this is an interesting map.

The Legend:

The text is REALLY bad. The texturalis blackletter is ornate and hard to read, it's pixelated and blurry, and it doesn't match the typeface of the labels on the map.

A simple neatline around it would help tie it together. Just a plain, thin, black rectangular border. No need for anything fancy.

The empty name fields in the legend give it an incomplete look. It's not clear if that means the route has no name, or if it's just not included in the map. Try putting in a placeholder like 'Unnamed' or 'N/A' and set it off from the other names by putting it in italics, or grey, or bolding all the other names.

Some indication what the fields are would help. (I assume the second number is difficulty, but you should make it clear) A description of the meaning of the particular difficulty levels would also be a good idea, or just say what scale it's on.

The symbology:

The routes feel a bit messy because of the square dots lined up with the page. An ordinary line or dashed line would give it a cleaner looking curve. The drop shadow isn't helping either, on the routes OR the labels. I you want to make the line more visible, put a wider white line behind it, and maybe make it a bit transparent if that is too much.

Try colour coding the routes so you can get an 'at a glance' view of difficulty. If you do so, a corresponding coloured dot by the entry in the legend would be a good idea too. Right before the difficulty number would be best.

Technical Details:

You implied you want to distribute this to other climbers to be printed. In that case you should really try to do this as much as possible as a vector image. Your forum profile says you use Inkscape, so you should use that for the layout and text as much as you can. And you can save as a PDF for distribution to preserve it as a vector image. This will give you the best looking printout.

Legal details:

You should probably add a copyright notice, license information (You seem to be planning to share it so you want to let people know what they can do with it), data sources, and a 'Use at your own risk" type disclaimer about the quality of the data and the dangers of rock climbing.

A disclaimer of my own: IANAL and this is not formal legal advice.

Overall advice:

Try looking at similar maps: Ski resorts in particular, but also mountain biking or hiking trails.