The font is really nice but the block combines ancient and middle scripts. You probably investigated late (≈15th century) scripts but killed all ancient letters.

1. 11900 Dives Akuru letter A is really large. Is it possible to make it… a bit smaller?
2. Hang all vowel signs to dotted circle too.
   
3. Draw missing early letters in the same style. Your font has LOTS of tofu.
4. Consonant conjuncts, both stuck and ligated, do not work.
   K+TA
   
   
   S+TA
   
   
5. 11956 Dives Akuru vowel sign Ai misrendered, IDK what should have been.