Model ships in ME2,ME3

In ME2 and ME3, you start picking up or buying model ships to put in your quarters, they are very detailed. But, in MEA they are not detailed, even though they are small. they look like they were rushed and look too plan. I've built models in scale from 1/72 to 1/32 and I even seen some in 1/144 scale and they have amazing detail, I've even seen some models as small as a dime. it might be me but I'm a stickler for detail.