That's a nice effort but I'd argue about accuracy - not too loud, because there could be some difference between production series (and the existence of the lesser-known modification 2S7M Malka might be a confusing factor too) - and bit louder about shading (other than the barrel, it's practically flat
, and last but not least, the road wheels have different height and width here.
Maybe this would help a little
These are drawings from some Russian-language sources, though I have strong
doubts about the second one.
That's ex-Polish Army 2S7, now in museum of artillery on the grounds of Centrum Szkolenia Artylerii i Uzbrojenia (Artillery and Armament Training Centre) in Toruń.