Here my comments on the last set of "Portrait" cards. Please keep in mind, that this is mostly about wording. With so many cards at once, I think it is easier to try to gradually improve them rather than go into deep thinking about each and every card.
Immolater
Wording: “Discard…”
Magic Library
Some wording suggestions: “…, after resolving it,…” or “…, after they finished playing it,…”.
Have you considered the consequences of Black Cat?
Marketplace
“Choose one: +1 Action; or +1 Buy, or +$1.
Each Marketplace after the first one can give (among other options) +1 Card, +1 Action, +$1, i.e. a Peddler. The first one can give (among others) +1 Card, +1 Action, +1 Buy, +$2, i.e. a Grand Market.
Overall, this seems to be a bit too strong with all its flexibility. If so, it seems to be difficult to change the cost. Maybe, as a start to nerf the card, skip the second +1 Buy.
Shipmaster
Wording: “…at the start…”
Can get complicated when Duration cards are targeted.
Tavern Nights
Wording: “and any Treasure cards…”
Calling regular (i.e. non-Reserve) Treasure cards may be a bit odd for some people (I don’t mind much). However, when you call a card, if not otherwise stated, it goes to the playing area. I guess, the Treasures then shouldn’t produce $. Is that the intention? If so, you could just discard them from the Tavern mat (see Wine Merchant) for $1 each. On the other hand, if your intention is that they also produce their own $ in the turn they are called, I think you need a different wording, probably avoiding “call” in this context.
Wishing Fountain
Looks okay.
Tale-Teller
This looks a bit expensive for what it does.
Distant Island
Exile (2x).
Do you need “If you did”?
Paladin
No need to reveal the cards (although the wording is shorter), i.e.: “Look at the top 3 cards of…”
Looks otherwise okay.
Amazon
Looks okay.
Overall: I haven’t counted or compared to official expansions, but I have the feeling that there are too many non-terminal cards for a set to be balanced this way; i.e. lots of cantrips, Villages, City variants, plus Night cards and Treasures.
The number of cards providing +Buy seems okay (on the upper end), but that all $2 cost cards have it is a bit unfortunate.
I didn't looked at the number of cards with other categories a set should have (Smithies, trashing, Workshop etc.), but I haven't encountered anything suspiciously wrong.