Those are daffodils in the back? All I knew is that they keep coming back, even in early spring snow, praise God, though they do not show flowers for long.
As for the others, I looked at posts from last year for the mystery flowers I planted from seed and the guess was Gloriosa or Rudebeckia daisies
The yellow flowers in your photo on post 12 look like daffodils to me. Or maybe jonquils if they’re not very big.
Our daffodils have been opened for 2-3 weeks now. Some are later blooming and are just opening around here.
The photo at right looks like Rudbeckia daisies to me.