OK---now the next pic has to be one showing you riding it---as per Zombie rule No 2, subsection 4.7 , as amended, which basically says that if you build it, you must ride it!
If nothing else you have the perfect start towards a "normal" unicycle.
And I nearly forgot, a pretty good start on a seat---if it's comfortable in the real riding position, with correct bars fitted, that test ride gets even closer.
Bet you rolled round the yard!
Steve G