Original Camil Ressu?

Dear art lovers,

Yesterday, I bought a drawing signed CAMIL RESSU.

I really love it, but I bought it from a man that knew nothing about it. It was on a street event, where poor people were selling small pieces of art found in old houses. Unfortunate, the seller could not say anything about the origin of this drawing (which is usually the case for objects obtained in dubious conditions), and I have serious doubts that this might be an original. Still, I negotiated a very good price, for something that could be, in the end, a Camil Ressu.

Camil Ressu was one of the most significant art figures of Romania. He also painted still life, portraits of various personalities, and nudes. Yet, he's name is not very known to simple people.

I found several drawings of nudes attributed to him, but the style of his signature does not really fit to the signature in my drawing.

Nude, signed CAMIL RESSU

Detailed view of the signature

What do you think, is there any chance that I bought an original CAMIL RESSU? Maybe one of the drawings he used to make during one of his studies?