I enjoyed drafting your cube. I noticed that you have included very few lands, with the result that a typical two color deck will only play one, and three color decks are likely unfeasible. If this was your intention, I would recommend cutting lands all together as their current impact is minimal for the space they occupy.

If you are intetested in improving players' access to fixing, consider a mix of the following:

1. Add more lands. A good rule of thumb for minimum fixing is at least 10% of the cube, or 18-20 for 180 cards.
2. Replace dual lands with trilands or thriving lands. Replacing 10 duals with 10 trilands triples your mana fixing, as each color pair appears three times rather than once. Thriving lands (and the new gates that do the same thing) are even better and would be my recommendation if you only run 10 lands, provided you don't mind the tracking that they entail.
3. Consider lands that any player can take. The Thriving lands already fit this category (you can take off-color ones to play as Shimmerdrift Vales), but other suggestions would be Evolving Wilds/Terramorphic Expanse, Ash Barrens, Mirrodin's Core, or Cryptic Spires (though again with extra tracking).