I think it is a fine horn, and it should serve you well. It appears to be tight and solidly constructed, and I like the somewhat rough surface texture, with toolmarks showing on the horn and base plug. I like it!
The OP asked what we think about it, and I offer the following as my thoughts, and not as criticism.
Personally, I could live without the painted cervid figure. No issues with the quality of the artwork... It's just that the horn would look better to my eye if left plain.
The placement of the artwork suggests the horn will be carried on the right. I would have rotated the staple in the butt plug ninety degrees, to allow the horn to hang comfortably with a strap the width of the staple. It'll work fine with a narrow thong the way it is, though.
A lot of people nowadays will look at the twist of this horn and tell you it is better suited to left-side carry. This requires rotating the horn clockwise so the curve conforms to your hip. However, I think a horn with this twist (likely from the right side of the ox's head) will hang more naturally on the wearer's right side, with the tip pointing up. Just my preference.
Anyway, it's a fine horn! You can use it proudly.
Best regards,
Notchy Bob