Some thoughts on medieval/renaissance Iberian gameplay:
-the gold (and amber) on Hispaniola is covered in jungle, which makes it inaccessible. I figure these resources are supposed to disappear after a certain date (they're not there in the 1700 scenario), but with the gold on Hispaniola I assumed the Spanish player is supposed to settle Santo Domingo (oldest surviving European colony in the New World, I like to found it for that reason) to get it as part of the UHV. Was this intentional?
-Moors feel very strong IF they get their North African resources hooked up early. AI Spain is struggling to take Cordoba even into the Renaissance in many of my games. AI France takes Barcelona instead of Spain somewhat often (France is general is pretty strong right now, I'm getting big blue blob PTSD flashbacks from Europa Universalis...)
-Marrakesh is four tiles from Iberia yet it still overpowers both AI and human Spain's culture in the Gibraltar/Granada area, even when I the player raze Cordoba and found Sevilla instead
-two landlocked Iberian cities feels punishing in a Spain game in my opinion, especially when Marrakesh's culture seals the strait of Gibraltar in every single game, making production-awful La Coruna or Santiago your only Atlantic shipbuilding center. Maybe the intended gameplay is to exterminate the Moors on both sides of the strait, or just not do any widespread colonization (let the vassals get the gold and silver for you), but the latter feels very strange when playing Spain, the second biggest colonizer of them all
-Spain's core area does not appear to change when it reaches the Renaissance
Some Portugal specific thoughts:
I'm a bit disappointed to see the Portuguese open borders goal from base RFC survived. Making nice with everyone is not at all fitting for a crusader kingdom that took the Reconquista to the other side of the world. I have three ideas for a replacement UHV.
First idea,
Afonso de Albuquerque's strategy for closing the Indian ocean:
-Control the Bab al-Mandab (Aden), the straits of Hormuz, the Mozambique channel, and the straits of Malacca by X date (1600 would be appropriate, I think)
Second idea, a reflection of the Portuguese piracy and mayhem in the Indian ocean:
-Plunder X gold from blockades, pillaging, and city conquests in the Indian Ocean region (Vasco da Gama cheering from his grave, dude was a savage)
Third idea, the activity of the Jesuits in the Indo-Pacific:
-Spread Catholicism to X number of cities or X percentage of [India, China, and Japan] (in my opinion this is a more interesting way of doing the open borders challenge, and has some nice meta poetry with Spain's Catholicism UHV)
I don't know if you're looking for feedback on existing UHVs or just UHVs in general. If it's just existing ignore this, I'll just save it for another day.