Seven letters are we,
Four different words we make.
Guess us or be ridiculed;
Your reputation's at stake.

The first has pictures,
Paintings and such.
The second causes sneezing,
From ragweed or dust.
The third is an adverb,
It's hard to explain
It's the same as immensely
But it's much more plain.
If you can act like a king,
this word you will sing.

These clues are sparse
This riddle may be tough.
But if you are smart
Then it will be enough.