Critisim of my play most welcome

[TheCat]

9 handed NLHE 1$/2$. Not long at the table so no reads on anybody

I'm UTG with A /images/graemlins/diamond.gifT /images/graemlins/diamond.gif raise to 4. stack about 100$
UTG+1 calls, BB calls.

Flop is 3 /images/graemlins/club.gif7 /images/graemlins/heart.gifT /images/graemlins/spade.gif

BB checks, I bet 20, UTG+1 calls, BB calls
Turn is Q /images/graemlins/spade.gif

BB checks, I bet 60, UTG+1 raises to 100, BB folds, I'm all in for another 9

River is 2 /images/graemlins/diamond.gif

Critisim of my play most welcome