Hi Clavico....Can I be so bold as to suggest that you Google 'Pagoda' and have a quick scan through Google images. There are a couple of recurring features of the classic pagoda form that could help answer your question.
Essentially, it comes down to 2 things.....
1....as John (The Bowler Hatted Turner) pointed out, the corners of the lid should point upwards. All pagodas have this feature
2....the way that the blackwood detail in the roof breaks the sweep of the curve is spot on, but, having established that a a feature of the roof, could you not have copied it with the little ash finial and with the corners? On traditional pagoda roofs, the spacing of the roof details are obsessively calculated, being graduated from bottom to top. The irregularity of the details on your lid are breaking the roof up into uneven areas.
Having said all that, the body is a nice piece of olive ash, with a pleasing, regular curve on it, and it's still a pleasant shape.
Hope it helps...Les