I know I shouldnt bluff too much at those stakes. Are those terrible or not?

hand 1 : Villain is a 17/10 tag and seemed kinda weak as i stealed him a lot

$0.05/$0.1 No Limit Holdem
9 players
Converted at weaktight.com

Stacks:
UTG S0fts3rve ($10.14)
UTG+1 joevann555 ($11.53)
MP1 kako1983 ($10.60)
MP2 dehu9 ($19.10)
MP3 Renethefish ($11.54)
CO EyePotZ ($19.18)
BTN little_yunk ($2.05)
SB Hero ($11.58)
BB kovladi ($2.39)

Pre-flop: ($0.15, 9 players) Hero is SB
3 folds, dehu9 raises to $0.40, 3 folds, Hero calls $0.35, 1 fold

Flop: ($0.90, 2 players)
Hero checks, dehu9 bets $0.70, Hero raises to $2.10, dehu9 calls $1.40

Turn: ($5.10, 2 players)
Hero bets $5

hand 2 : Villain is kinda passive 21/8/1 on a small sample. I put him on a T or a 9 or a missed draw while ace and queen are good cards for my perceived range. Thinking about it I am not sure about this hand, loose PFR and risky river move. I found another hand of that villain in my database where he stabs 3bet river against PFRor and fold to 4bet but I dont think I knew it while playing

$0.05/$0.1 No Limit Holdem
9 players
Converted at weaktight.com

Stacks:
UTG SchulleS75 ($6.66)
UTG+1 Valezius ($2.00)
MP1 Raindog2 ($10.16)
MP2 action198704 ($2.48)
MP3 luckydeuce67 ($9.75)
CO Hero ($12.18)
BTN Deralte71 ($7.98)
SB El_Zhar ($10.38)
BB spira1 ($7.35)

Pre-flop: ($0.15, 9 players) Hero is CO
5 folds, Hero raises to $0.30, 2 folds, spira1 calls $0.20

Flop: ($0.65, 2 players)
spira1 checks, Hero bets $0.50, spira1 calls $0.50

Turn: ($1.65, 2 players)
spira1 checks, Hero bets $1, spira1 calls $1

River: ($3.65, 2 players)
spira1 bets $1, Hero raises to $4