Logic Masters Deutschland e.V.

The third puzzle in the Colorguru Chaos Deconstruction series, this time in a nice small 9x9 grid. You can find the earlier entries in the series in my list of puzzles here

Rules:

Colorguru Chaos Deconstruction: Some cells in the grid have been colored. The given cells are also labelled with a letter representing the color:
b - blue, g - green, p - purple, r - red and y - yellow

Using those 5 colors, color some more cells in the grid to satisfy the following conditions:

Every colored cell must belong to a Block. A Block consists of 1 to 5 orthogonally connected cells of the same color. Blocks of the same color cannot touch orthogonally or diagonally.

Every Block belongs to a Region. A Region consists of 2 or more orthogonally connected Blocks. Blocks within a Region cannot be the same color or size.

Regions may not touch orthogonally. Regions that touch diagonally have at most one color in common.

Renbans: Along a purple line every cell must have a different color, and the sizes of the Blocks they belong to must be a set of consecutive digits (in any order).

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Puzzle: