请教下这手KK，哪些可以改进？

zyc26

$0.05/$0.1 No-Limit Hold'em (8 handed)
6 a( `2 x% Z& ^: {7 v/ k  N. m
Known players:
BB = ($10.96)
$ f6 S$ `- A4 r  I; i9 J5 rUTG2 = ($19.31)
MP1 (Hero) = ($11.11)
MP2 = ($6.15)
MP3 = ($3.76)
CO = ($6.31)
BU = ($4.66)
) i4 m6 K3 u3 L0 ^SB = ($9.70)

6 `/ u) L9 ^  s7 j5 m- CPreFLOP: Hero is MP1 with Kd, Ks.
UTG2 raises to $0.40, Hero raises to $1.20,  6 folds, UTG2 raises to $3.00, Hero raises to $6.00, UTG2 CALLs $3.00.
: ]. f0 _5 l  \  L9 f1 K9 V$ X. M
$ K  ]" N) r9 X0 O0 }' QFlop: ($12.15) Qc, 8s, 5h (2 players)
UTG2 bets $5.10, Hero raises to $5.11, UTG2 calls $0.01.
9 s7 @# _* j0 G+ j' X2 H- [
7 i- O0 U$ U- ^5 H/ |  S- cTurn: ($22.37) 8c (2 players)
# a- H& s  `$ Q8 [! K" [River: ($22.37) 2d (2 players)
4 ^; A& T1 x  L+ A' F
Final Pot: $22.37.
5 ^2 E/ u& m2 _8 n; _Results follow:

UTG2 shows a full-house, queens full of eights(Qd Qh).
Hero shows two pairs, kings and eights(Kd Ks).
! ]% ?* O% @8 I$ N; ~UTG2 wins with a full-house, queens full of eights(Qd Qh).

这里Pre-flop 要All-in吗？