Nice job, crisp looking tips
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If I'm allowed to criticise, I'd say maybe use a straight edge when you are pricking througfh the holes in the leather, the rest of the work is so nice (folded edges are a nice detail) it just seems a shame to have wobbly stitching.
I push through the holes with an awl every 5mm using a steel rule as a guide before stitching.
5mm works well, not so fine that it takes for ever and not so coarse that it looks rough.
Del