You did very well, considering this is your first bow! I'm sure you've learnt a great deal.
I don't entirely agree with some others that said the grain of that board is not good enough. It looks pretty acceptable to me. I can see some grain run outs in the middle, but that is the (stiff) handle, so it shouldn't be much of a problem. And you've proven that.
There are a few things that you should still improve on this bow. First off, the tiller is not good enough for me. The
left limb is a bit hinged in the middle. You really need to scrape the inner third of that limb, to take some stress off the middle section. The right limb is also not perfect; please scrape that limb between 3" and 12" from the handle. You'll loose maybe four pounds draw weight, but the bow will be much safer and shoot better that way.
Another thing is the tip overlays. The sole reason to put on a tip overlay, is to strengthen the tip, so you can safely file in the grooves. At the moment, those overlays are massive. The add a lot of (dead) weight, slowing the bow down. Remove about 75% of the mass of the tip overlays, and file in the string groove again. This will make the bow look much better, shoot with less handshock, and shoot faster too.
Then onto the handle...You've made some good improvements already, compared to the first handle picture. I highly recommend you to not cut in a window for the arrow pass. Instead, you could add a small shelf to the side of the handle. Just glue on some cork or leather. If you insist on a cut in sight window, please see this picture on where you should cut it in. It should be about 1" above the absolute center of the bow. Not as high as you drew it! Also, it must be far away from the fade, as to not create a weakness there.