I think this is acceptable natural bidding
East hand is strong (3 aces and six card suit) so can make invite with 3
♥. west accepts invite. after passing on first round west should show hand type and point range opposed to poor 5 card
♠ suit. if east has 5/6
♥ + 4
♠ then he can make a bid of 2
♠ here imo so
♠ fit does not get lost. if east had a better hand with
♥ +
♠ suit here then east would not have made overcall of 1
♥ but would have made a takeout X.
both east as overcaller, and west as passed responder have described their hands correctly with these bids. I think it is right to have 1NT by west here as either 8-10 (9-11) balanced. but easier to judge having seen both hands, though east hand is more like 15-16 count because of aces and
♥ suit quality.
P-(1♣)-1NT takeout-(P)-2♠-(P)-3♥-(P)-P-(P)
I was wondering what approach bids & make game or was partner too cautious?'
+++++++++++++++++++++
Game is no certainty but worth bidding at imps. A successful auction needs appropriate agreements. In mw64ahw's auction, perhaps West is worth another bid rather than halting abruptly on the sixpence of 3♥.
2 of my partnerships play intermediate 2-level overcalls. Such an agreement would work well here. 2-overcalls (both simple and jump) show a good opening-bid and a 6-card suit (or strong 5-card suit).