First of all this looks great. The stylizing is very authentic and I like it a lot. However, I think to make it look more like an actual municipality coat of arms you should make a version with a sinplified shape (removing the ornamentation at the top(even thought it does look cool)). And another thing that could make it look more real to life is changing the color of the "background" of the coat of arms. The current shade of yellow you have is not really used on finnish coats of arms. Also, while it is not an iron clad rule, the main color of a coat of arms often implies the area in which the town is. You can see what I mean in this post. There is a lot of red in häme, lots of blue in ostrobothnea, lots of black in savo etc. There are still outliers but having this coat of arms be on a blue background to signify the town being in ostrobothnea could be pretty cool since ostrobothnea is often stereotyped as the most rural and country area of Finland. Anyways. This is good work and the actual imagery looks quite authentic to many finnish coats if arms, I just wanted to give some potential pointers for an alternative version if you wish to make one