1. Compare the shape, colour and nacelles to the (supposed) Daedalus class.
2. Again look the Daedalus' primary hull.
The Warp Five Complex was dedicated in 2119, and I think they were designing the NX-01 around the engine for a lot of that time, if not all. Her appearance was presumably stabilized (at absolute latest) by the mid-to-late 2140s when her construction had to be underway, and may have been set much earlier.
By contrast, the
Daedalus class may not even have been designed until the 2160s, and we have zero reason to think it was designed by just humans, since it's a Federation starship and not an Earth ship like the NX-01.
So,
NX class is designed decades after
Daedalus class, by different people who aren't even of the same species, with an influx of totally different methods and technology from their disparate backgrounds, under different conditions and quite possibly for a different mission profile.
Why should the "shape, colour and nacelles" be similar?
Regarding the shape of the primary hull, I asked about it because I didn't understand why you think NX-01 looked out of time because it didn't have a spherical primary hull, not because I am unfamiliar with
Daedalus. Even putting aside all the other issues with NX-01 I addressed above, if we know of only one ship from the era in which the
Daedalus-class ships were flying, I see no reason to assume her contemporaries would have the same shape for the hull. This would be determined by mission profile and warp performance, would it not? There's a ship with a spherical primary hull in the TNG era, flying alongside contemporaries that do not have one; we certainly wouldn't say that either in this comparison look out of their time, merely that they are different.
Warp engines are offset in an odd way that would not center the ship in the warp bubble
The warp field is meant to have two lobes and to be asymmetrically biased so as to pulse, so they shouldn't need to be too restrictive about centering.