Thank you very much for your comments my friends! I am trying to do every bow as it is the last one.
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Elderberry wood is great to work, hard, do not rise splinters, fine under sandpaper.
dwardo, I think I will never came over to the dark side and begun with shortbows.
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This colour is its natural, just finished a little with pig fat, my necessery recipe.
Del, it is not difficult, just ignore everything.
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Jodocus, it was baout 3 x 3 cm in the begining.
Dauntless, elderberry must be very overstressed to show crysales, it is both compression and tension strong but seems better in tension: I have made bows that had 90 degrees twist of the tips and it holds excellent.