Looks great, i would remove the chamfer on the bottom rear edge. If this edge is sharp then water lets go of the board instead of stick. It lowers start resistance just a bit - but it isn’t critical - if you like it the way it is then don’t change it.
Sizewise it’s good, i would maybe take it down a bit in size, 145x65 or so since less is better and i don’t think anyone needs larger than that.
I think straight is probably better for liftoff but it looks too ugly. One advantage of a straight board is you can easily cut it down if you want. I did this three times on my first board, but that was longer than your dimensions from the start.