looking good for a first time attempt, but a couple of points for you to ponder...
Deshrouding the inlet valve in the area marked in red, you could definitely use more material removal from around this area... you have the chamber wall angling down from the fire ring edge to the edge of the valve, it definitely needs more clearance to assist low lift flow. put a valve in place and lift it 5 - 10mm in mm increments and see how little space there is around the valves periphery in this area.
about 80% of the flow comes out of the area marked in blue in the picture above, deshrouding the region towards the quench pad has no benefit, and can infact be detrimental to overall flow.
the second point is bowl depth and the port roof height, you need to give it a larger bowl volume and raise the port roof more... like most forst time porters you made the usual mistake of starting at the outer face to the manifold.... and I warn about this in my chapoter on cylinder head development... you really need to begin in the area around the valve guide as this sets the roof height / bowl depth (the area I mean is roughly the region in blue in the picture below)
look at these port mould pictures, see how the bowl sides are very vertical, not tapering in towards the guide boss... this and the port height really define a well developed port on these motors
you made yourself a lot of work starting with an 1100 head, combustion chambers can take up so much time to get right / get even across all four... you would possibly have been better off beginning with a (chinese) Tipo head (and it would have already had the inlet seat to suit 39.5 valve)
Check out a series of videos on youtube by David Vizard in his powertech10 series, on his five golden rules of porting.
SteveC